Industrial Solid Waste Generation Research Articles

Whole‐process and multi‐stakeholder‐based solid waste management framework construction for industrial parks: Toward circular economy development

AbstractThe intensive generation of industrial solid waste (ISW) in industrial parks poses a severe threat to the water and soil environment. To address the lack of system‐level guidance strategies for ISW management (ISWM), the paper proposes a systematic ISWM framework within the context of the circular economy principle and applies it to a prominent eco‐industrial park in China. This framework is founded on the metabolic characteristics of the entire ISW process, supported by multi‐stakeholder cooperation, and guaranteed by a shareable information platform and infrastructure. A holistic ISW flow analytical process is introduced to facilitate the implementation of this framework. In the case study, a high‐resolution inventory of ISW is established by 157 enterprises in 2021, covering 116 types of general ISW and 61 types of hazardous waste (HW). By integrating material flow analysis, questionnaires, and interviews, this study quantitatively reveals the underperformance of mini‐scale HW recycling, with a recycling rate of 5.6% in 2021, well below the park‐wide rate of 50.8%. Collaborative inboundary and transboundary disposal emerges as a crucial direction for ISWM, with over 80% of ISW being disposed of outside the park. Following the implementation of circular economy strategies guided by the management framework, notable improvements are observed, including a 26.5% increase in the recycling rate of mini‐scale HW and a 13.5% increase in the proportion of disposal outside Beijing. To foster sustainable ISWM, this study recommends enhancing the decentralized infrastructure of collection–storage–transportation integration for mini‐scale ISW in industrial parks. The developed management framework provides valuable insights and guidance for park‐specific ISWM strategies.

Ecological risk assessment of heavy metals in coal gasification slags and their leaching toxicity

ABSTRACT The coal gasification process produces a large amount of coal gasification slag (CGS), which accumulates heavy metals from the raw coal. The CGS not only occupies land resources during long-term storage but also poses potential ecological pollution risks. In this study, eight different CGS samples from various regions of China were analyzed to determine their chemical composition and evaluate their environmental risks. Two leaching methods recommended by the Ministry of Ecology and Environment of China were employed to conduct leaching experiments, aiming to assess the hazardous waste level of CGS. The results indicated that the risk index of YL-FS and XJ-CS reached 101.87 and 87.15, respectively, classifying them as medium-risk materials. The remaining samples were categorized as low-risk materials. CGS itself is not classified as hazardous solid waste. The leaching results revealed that the concentration of Be in the leaching solution of NMG-CS and XJ-CS exceeded 0.005 mg/L, placing them in Class II of general industrial solid waste. The remaining samples exhibited minimal leaching toxicity and were classified as Class I general industrial solid waste.

Study on general industrial solid waste and carbon reduction in China: Coupling coordination model, life cycle assessment and environmental safety control

The production of general industrial solid waste (GISW) which has grown rapidly along with the economy, has become a bottleneck that is impeding the sustainable and healthy growth of society and the economy. At the same time, China, as the country with the largest carbon emissions at present, has set a double carbon target, so China is faced with the dual goal of promoting the synergy of GISW pollution and carbon reduction. This paper systematically reviews the actual production data, literature reports, standard specifications, etc. of GISW and carbon dioxide emission in China, and processes the data with synergistic effect model. Both GISW and carbon emission in China show an obvious spatial aggregation effect, and the coupling and coordination index of both grows from moderate maladjustment to senior coordination stage, and the synergistic effect of different regions gradually increases. Selecting typical pollutants from key provinces analyzed based on coupling coordination degree, and the life cycle assessment was performed using SimaPro 9.0 software, the results show that fly ash is more destructive to the environment and causes higher carbon emissions than the other two GISW, with carbon emission equivalent being about 1.8 times that of tailings and 1.6 times that of EMR. Compared with the carbon emission equivalent of 1.12 × 103 kg CO2 eq in the preparation of traditional cementitious materials, the preparation of coal-based cementitious materials generates less greenhouse gases with carbon emission equivalent of about 1.06 × 103 kg CO2 eq, which has a significant solid waste consumption effect as well as carbon reduction effect. Meanwhile, from the GISW storage process, a disposal environmental safety control system is established mainly for heavy metals, volatile organic compounds and atmospheric pollutants by comprehensively referring to literature and standard specifications.

Effect of Fiber Content on Mechanical Properties of Fiber-Reinforced CGF All-Solid-Waste Binder-Solidified Soil.

In order to realize the resource utilization of solid waste and improve the tensile strength and toughness of soil, CCR-GGBS-FA all-solid-waste binder (CGF) composed of general industrial solid waste calcium carbide residue (CCR), ground granulated blast furnace slag (GGBS) and fly ash (FA) was used instead of cement and combined with polypropylene fiber to strengthen the silty soil taken from Dongying City, China. An unconfined compressive strength test (UCS test) and a uniaxial tensile test (UT test) were carried out on 10 groups of samples with five different fiber contents to uncover the effect of fiber content on tensile and compressive properties, and the reinforcement mechanism was studied using a scanning electron microscopy (SEM) test. The test results show that the unconfined compressive strength, the uniaxial tensile strength, the deformation modulus, the tensile modulus, the fracture energy and the residual strength of fiber-reinforced CGF-solidified soil are significantly improved compared with nonfiber-solidified soil. The compressive strength and the tensile strength of polypropylene-fiber-reinforced CGF-solidified soil reach the maximum value when the fiber content is 0.25%, as the unconfined compressive strength and the tensile strength are 3985.7 kPa and 905.9 kPa, respectively, which are 116.60% and 186.16% higher than those of nonfiber-solidified soil, respectively. The macro-micro tests identify that the hydration products generated by CGF improve the compactness through gelling and filling in solidified soil, and the fiber enhances the resistance to deformation by bridging and forming a three-dimensional network structure. The addition of fiber effectively improves the toughness and stiffness of solidified soil and makes the failure mode of CGF-solidified soil transition from typical brittle failure to plastic failure. The research results can provide a theoretical basis for the application of fiber-reinforced CGF-solidified soil in practical engineering.

Study on the Relationship between Economic Growth and Environmental Pollution in Shanxi Province Based on EKC

Abstract China’s rapid economic development since the reform and opening up has attracted the attention of the world, while a sharp deterioration of the environment accompanies the rapid economic development. Starting from the current situation of economic development and environmental pollution in Shanxi Province, the interaction between economic growth and environmental pollution in Shanxi Province is comprehensively analyzed, and the influence mechanism between the two is revealed. The EKC theoretical econometric model for the relationship between economic growth and environmental pollution in Shanxi Province is constructed and empirically analyzed by combining the multicollinearity test, correlation test, unit root test, and cointegration test to obtain the data required for this study, and at the same time, to determine the research indexes and parameters. The correlation coefficients between GDP per capita and industrial wastewater discharge per capita, industrial exhaust emissions per capita, and industrial solid waste generation per capita in Shanxi province reach more than 0.5, and the Sig values (0.001, 0.004, and 0.005) are less than 0.05, which is a significant correlation, and the R2 coefficient of determination of the fit of the EKC curves of GDP and exhaust emissions is 0.8532, and the expression is y = –0.1169 + 5×102 x – 1×103 x 2 –1.6×103 x 3. This study profoundly reveals the relationship between economic growth and ecological environment and promotes Shanxi Province to achieve the goals of environmental improvement and sustainable economic development.

Development of an industrial solid waste ecological analysis model in Shanghai, China.

Amid China's rapid economic expansion, the country's industrial solid waste (ISW) problem is escalating. As each sector generates distinct types of ISW, a multi-indicator assessment of each sector is essential to address China's New Solid Waste Policy. To investigate the ISW situation of each sector and perform a comprehensive assessment, we formulate an industrial solid waste ecological analysis framework based on ISW generation and ISW flow in the sector. Various indicators (i.e., solid waste utilization coefficient, solid waste threat coefficient, and solid waste threat intensity) are employed to assess the utilization of solid waste generated for each sector, as well as the threat of solid waste originating in each sector to society. Ecological network analysis probes the interrelationships between diverse sectors. Taking Shanghai in 2017 as an example, the study indicates that some sectors (e.g., production and supply of electric power and heat power (EH) and metal smelting and rolling processing sector (MS)) exhibit higher direct ISW generation and the direct industrial solid waste value-added coefficient (SVAC) for common industrial solid waste (CISW). Specifically, the direct CISW generation of EH and MS is 539.21Mt and 277.00Mt respectively. The direct SVAC of EH and MS is 157.06kg/103RMB and 126.27kg/103RMB respectively. These sectors should prioritize reducing emissions at the source. Additionally, the threats to society from various sectors are relatively insignificant for the CISW, while for the hazardous waste (HW), all sectors pose a considerable threat to Shanghai's society. Moreover, some sectors (e.g., mining industry) exhibit the highest mutualism relationships in the CISW and the HW. Enhancing mining sector technologies is a vital strategy for mitigating ISW sources. Specifically, MI has 9 pairs of mutualism relationships in the CISW and 8 pairs in the HW. These insights will provide empirical evidence for tackling the ISW problem in Shanghai.

Study on thermal conversion and detoxification mechanism of fluorine during co-combustion of meager coal and spent cathode carbon block

Fluoride is a toxic and harmful ingredient in the spent cathode carbon blocks (SCCB). Gaseous fluoride pollution is a significant potential pollution source in the process of boiler collaborative disposal of SCCB. In this paper, meager coal and SCCB were used as fuel, the mixing ratio and temperature were variables, the law of thermal conversion of fluorine during the co-combustion process was studied, and the properties of ash residue were discussed. At the same time, CaO was added to the furnace to reveal the influence of temperature on the effect of fluorine fixation in the furnace. The results showed that combustion was the most suitable method for removing soluble fluorine from SCCB, and the thermal conversion rate of soluble fluorine was up to 99.68–99.98%. The higher the combustion temperature, the higher the conversion of gaseous fluoride, and the worse the effect of fluorine fixation in the furnace. It is not suitable for fluorine fixation in the furnace when the furnace temperature exceeded 1100 ℃. The higher the mixing ratio of SCCB, the higher the production of gaseous fluoride, and a proper mixing ratio is vital for co-combustion. Ash residue after mixing 10% SCCB combustion belongs to general industrial solid waste. This study has important theoretical significance for determining the applicable furnace type, the appropriate mixing ratio and effective fluoride treatment measures in the co-combustion process of coal and SCCB.

Techno-economic analysis of municipal sludge co-combustion power generation with different fuels

Municipal sludge production has been growing due to urbanization, and the sludge co-combustion process has been proven to be a promising alternative. Bituminous coal, straw, and general industrial solid waste (GISW) were used as fuel with sludge co-combustion power generation (CPG). The life cycle cost (LCC) theory and life cycle assessment (LCA) were applied to study the techno-economic and environmental impact of three CPG processes. The results show that the sludge CPG process demonstrates significant economic benefits. Using 1 ton of wet sludge as the functional unit. The net gains for using GISW, rice straw, and bituminous coal as fuel are ¥947.38, ¥261.31, and ¥135.78, respectively. However, the sludge CPG process imposes a burden on the environment, and incineration is the main stage leading to environmental degradation. Therefore, it is essential to focus on the emission of pollutants during this stage. This study can promote the economic sustainable development of sludge CPG.

Can regional environmental quality improve green innovation performance? an empirical analysis from China

Introduction: Green innovation is an important driving force for reducing pollution and achieving high-quality development. Environmental factors are important external variables that affect innovation and are crucial to innovation development. There is a close relationship between environmental quality and green innovation performance. This paper takes the single environmental factor and combination of environmental factors of environmental quality heterogeneity as the explanatory variables, the traffic scale, economic scale, industrial scale and consumption scale as the control variables, and the per capita GDP of each city as the threshold variable, and calculates the impact of the single environmental factor and combination of environmental quality factors on the green innovation performance of 286 cities in China under different per capita GDP thresholds.Methods: We used Data Envelopment Analysis (DEA) and Threshold Regression model to measure the relationship between environmental quality and green innovation.Results: 1) under different thresholds, a single environmental factor has different impacts on the comprehensive level of innovation drive in Chinese cities. Comparing the single environmental factor under different threshold values of per capita GDP, when the per capita GDP is low, attention should be paid to improving the centralized treatment rate of urban sewage treatment plants and the comprehensive utilization rate of general industrial solid waste; When the per capita GDP is high, the harmless treatment rate of domestic waste, the centralized treatment rate of sewage treatment plants, the green coverage rate of the built-up area, and the green area can all have different promotion effects on the driving capacity of cities along the line. 2) Under different thresholds, the elasticity coefficient of the total ecological environment, the total ecological environment has a relatively obvious promoting effect on the innovation-driven development of cities along the line, but this promoting effect shows a further weakening trend with the increase of per capita GDP.Conclusion: This study helps to explain environmental quality and green innovation, which is important for promoting sustainable economic development. The government should control environmental pollution and introduce laws and policies to ensure innovation.

Research on Advanced Treatment Technology of Fluorine Containing Wastewater from Graphite Production

With the gradual improvement of environmental emission requirements in China, the graphite industry is facing environmental pressure from advanced treatment. This article first conducted a study on the current status of advanced treatment technology for fluorinated wastewater. Subsequently, a single defluorination agent experiment was conducted, and it was found that compared to several agents used in the experiment, such as PAC, PAFS, and CaCl2, PAC had the best defluorination effect. The optimization of PAC conditions showed that its optimal reaction pH was 7, and equilibrium could be achieved after 3 minutes of reaction. The study also conducted orthogonal experiments with mixed salts, and the best conditions for the combination of fluoride removal agents were found to be PAC adding 400 mg/L, CaCl2 adding 400 mg/L, PAFS adding 200 mg/L, which can remove fluoride to 0.92 mg/L, below 1 mg/L, meeting the Class III water standard in the " Environmental quality standards for surface water ".The SEM image of the sludge generated by the reaction between the composite fluoride removal agent and fluoride containing wastewater shows a larger particle size of up to 50 μm which is beneficial for the separation and removal of sludge. The generated sediment sludge is mainly composed of Al, Fe, Ca, O, and Si according to EDS results, and belongs to general industrial solid waste.

The design of ternary all-solid-waste binder for solidified soil and the mechanical properties, mechanism and environmental benefits of CGF solidified soil

Utilization of industrial solid waste to develop binder and solidified waste soil, which can achieve ‘waste control by waste’. Based on the alkali-activated mechanism and interaction mechanism of the binder-soil particles-water, the component distribution ratio design method of ternary all-solid-waste binder for solidified soil was constructed. The CGF all-solid-waste alkali-activated binders (CGF binders) are composed of general industrial solid waste, with which calcium carbide slag (CCR) as alkali activator, ground granulated blast furnace slag (GGBS) and fly ash (FA) as high and low-activity pozzolanic material respectively. Macro and microscopic tests were performed to reveal the mechanical properties and solidification mechanism as well as quantitatively evaluate the environmental and economic benefits of CGF solidified pure clay, pure silt, and pure sand (CGF solidified soils). The results revealed that the strength of CGF solidified soils was significantly affected by the alkali activator content and the activity of pozzolanic materials, and the strength of partially CGF solidified soils were higher than cement solidified soils under the same conditions. The relationship between binder-soil particles-water, viz., the alkali-activated reaction between binder and water, along with the pozzolanic reaction between the alkali activator and the clay particles jointly determined the strength and strength growth rate of the solidified soil. The strength of the optimal CGF solidified soils were 1.38–2.30 times higher than cement solidified soils, however, the carbon emission per unit strength and cost per unit strength of the cement solidified soil were 71.43–125.02 times and 3.53–5.88 times higher than the optimal CGF solidified soils, respectively. The findings can provide a reference for the design and development of solid waste-based binders suitable for solidified soils.

International trade of PRC and its place in environmental sustainability

The sustainable development of trade and the environment is related to the sustainability of a region, a country, and even the global economy. As a major trading country, China has achieved remarkable results in international trade growth in recent years, driven by its continuous deepening of open trade policies. Article identify the key factors that contribute to the changes in environmental sustainability in China’s international trade. Research defined the ways of China’s growth of international trade volume with promoting sustainable environmental development. Analysis found the impact and role of the continuous expansion of trade scale on China’s sustainable environmental development. By analyzing the data on the scale and structure of China’s international trade, research checked the data changes that affect the relationship between international trade and environmentally sustainable development. In this paper we substantiate the conceptual provisions of the theoretical and methodological model of the international trade and its place in environmental sustainability: system characteristics (international trade development to total GDP; international trade pattern structure analysis; geographic direction of international trade) and the principles of environmental sustainability (total industrial waste gas emissions and treatment; industrial solid waste generation, disposal and comprehensive utilization; industrial wastewater emissions, industrial chemical oxygen demand emissions, and Industrial ammonia nitrogen emissions).

Get the win-win: Sustainable circular model of 'generation-value-technology' of industrial solid waste management.

The management of industrial solid waste (ISW) and promoting sustainable circular development of the industrial economy is an urgent priority today. Therefore, this article constructs a sustainable circular model of 'generation-value-technology' of ISW management through the lens of industrial added value (IAV) and technology level. Also, the importance of the role of government is considered in the model. Based on actual data of China, this article simulates the future trend of the model using a system dynamics approach. The chief findings of the study are as follows: (1) under the current policy, China's future industrialization is increasing and the technological level of industrial enterprises is rising, but this is accompanied by a climb in ISW generation. (2) The win-win situation of ISW decrease and IAV increase can be achieved through enhanced information disclosure, technology innovation and government incentives. (3) Government subsidy should be oriented towards supporting technology innovation in industrial enterprises while reducing the proportion of incentives for ISW management results. Based on the results, this study proposes targeted policy implications for government and industrial enterprises.

Coordination Analysis between the Development of Urban Built-Up Areas and Urban Environmental Factors through Remote Sensing of Nighttime Lights: A Case Study in Nanjing, China

The fast development of urban built-up areas in China is causing many problems, such as pollution, congestion, etc. How to effectively evaluate the coordination between urban areas and environmental problems has been attracting many scholars worldwide. This paper intends to discover this “secretary” through investigating the built-up areas and their accompanied economic and environmental factors over almost 30 years (1992 to 2020) in Nanjing, China. DMSP/OLS nighttime lights images from 1992 to 2013 and the NPP/VIIRS nighttime lights images from 2012 to 2022 are used for extraction of built-up areas. A spatiotemporal evolution model is established to evaluate whether the built-up areas have developed in coordination and the relationship between urban built-up areas and various factors, including compactness, the fractal dimension, boundary and shape changes, exhaust emissions, and the production of general industrial solid waste, which was further investigated to ascertain whether there was coordination or not. The investigated results discovered that Nanjing’s built-up areas had maintained continuous growth from 1992 to 2020, with the compactness of built-up areas gradually decreasing from 0.42 to 0.23 and the built-up differentiation dimension changing from 1.31 to 1.39, demonstrating that built-up areas had gradually moved from a loose pattern to a compact pattern and from irregular development to balanced development in all directions. The macro model of the coordination index change trend is 0.847 from 1995 to 2020, which indicates that the coordination between urban built-up areas of development and their environments has been improving; however, the reduction in urban green space, the increase in waste emissions, and the increased production of general industrial solid waste has raised questions regarding sustainable development.

One Belt and One Road Impact on Environment, Economy & Health in Western China Through Industry Transfer

Abstract Based on fully absorbing and learning from the relevant research results at home and abroad, this paper focuses on four aspects: the transfer of polluting industries in the central and western regions and residents’ health problems. Firstly, the current pattern and development trend of regional pollution transfer in China; secondly, the economic effect of the transfer of polluting industries on the western undertaking areas; finally, from the micro and macro perspectives, the paper investigates the impact of the transfer of polluting industries on the individual health and health expenditure of residents in western China. The results show that the gap between industrial environmental and economic efficiency in the western region narrowed and gradually stabilised from 2008 to 2017. However, the gap between industrial environmental efficiency and economic efficiency in the western region widened from 2017 to 2020. The impact of environmental pollution on industrial environmental efficiency in the western provinces and regions has regional differences. Secondly, the present situation and trend of pollution control in western China are macroscopically investigated by comparing the output of general industrial solid waste and the investment in pollution control in different regions. Finally, this paper reveals the impact of the transfer of polluting industries on the health of residents in western China. Based on the characteristics of household category, age, and income of interviewees, the income growth effect of the transfer of polluting industries is less than the health loss caused by the transfer of pollution. It can be found that the transfer of polluting industries has a significant impact on the environment, economy, and the health of residents in western China.

Enhanced manganese leaching from electrolytic manganese residue by electrochemical process and Na2SO3

Electrolytic manganese residue (EMR) is a general industrial solid waste containing manganese (Mn) and heavy metals that is produced in the process of electrolytic metal manganese. In this study, the leaching efficiency of Mn from EMR was improved by using Na2SO3 and electric field. The results showed that Mn leaching efficiency reached 96.63 % (333 K, 8 wt% H2SO4, 60 mA/cm2 current density and 0.16 mol/L Na2SO3), which was 30.56 % higher than leaching with H2SO4 and 12.76 % higher than leaching by using electric field. The kinetic results based on the unreacted contraction nucleus model showed that the process is controlled by a mixture of external diffusion interfaces and chemical reactions, with a calculated activation energy of 19.68 kJ/mol. Na2SO3 and electric field enhanced the leaching of Mn by removing the compound salts layer wrapped around the outside of Mn and reducing the release of high-valent Mn to divalent Mn. This study provide a novel approach for the utilisation of EMR.

Evaluation of Economic Benefits and Ecological Environment Impact of Export Trade in Anhui Free Trade Zone

Nowadays, the scale of international trade is expanding at a great pace, leading to the development of the economy of different countries. Global industrialization and urbanization are developing with each passing day, and this fast economic expansion is putting a tremendous impact on the environment. Like the other countries, the scale of Chinese export trade is also increasing with time, resulting in the stable economy of our country. With the improvement of living standards, people are continuously demanding high environmental facilities. Further, the impact of trade (enterprises, companies, industries, etc.) on the ecological environment has become a worldwide problem because economic progress brought forth by trade expansion may directly affect the environment by causing pollution to rise or the degradation of natural resources. This indeed is a serious issue; therefore, various countries have started focusing on the impact of export trade on the ecological environment. In recent years, the issue of economic benefits and the environmental impact of export trade has become a hot topic of research. Therefore, this study focuses on the relationship between trade, economy, and environmental quality in China. For the accomplishment of our research study, we selected Anhui free trade zone (FTZ) as an example to analyze the interaction between the economic benefits of Anhui export trade and the local environment. It is among the top trading provinces in China having a faster economic development. In order to accurately study the economic benefits and environmental impact of export trade in the Anhui FTZ, this paper selects industrial waste gas, wastewater, and solid waste to establish an export trade environmental impact indicating system. After comparative analysis, three factors that include industrial soot (dust) emissions for export trade, chemical oxygen demand for trade, and general industrial solid waste dumping and discards are selected to evaluate the impact on the environment of the free trade zone. Based on this, the export trade environment vector autoregressive (VAR) model is established, and the variance decomposition method is used to analyze the dynamic impact of various factors on the environmental impact index. Further, we established an economic benefit VAR model based on the export economic benefit index (EI), export value (EV), and export product concentration (EPC) index and judged the economic benefit of the Anhui free trade zone based on the contribution rate of the obtained three factors. The experimental results show that the export volume and product concentration directly affect the economic benefits of the region, and at the same time, the expansion of export trade promotes the growth of economic benefits.

Integration of DPSIR framework and TOPSIS model reveals insight into the coastal zone ecosystem health

Establishing a management framework for coastal ecosystem health in a resource-based city contributes to curtail coastal environmental deterioration. In this study, the indicator system (34 indicators) for assessing ecosystem health in Zhanjiang Bay Coastal Zone (ZJB), the southernmost coastal zone of China, was developed according to the Driver-Pressure-State-Impact-Response (DPSIR) framework. The level of ecosystem health in ZJB was assessed from 2010 to 2018 by the Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS). Results indicated that the ecosystem health in ZJB was generally at sub-healthy level. Ecosystem health index of each DPSIR element, i.e., “driver subsystem”, “pressure subsystem”, “state subsystem”, “impact subsystem”, and “response subsystem” varied greatly from 2010 to 2018. The grey correlation analysis suggested that the 7 key factors affecting the ecosystem health of the ZJB included industrial solid-waste generation per unit area, ZJB water area, marine catch per capita, marine education cooperation, length of coastal erosion, frequency of typhoon storm surge disaster, and population density. Also, the “driver subsystem” and “response subsystem” are closely associated with the ecosystem health of the ZJB. Eventually, the framework of integrated management strategies was proposed to curb the destruction of the ZJB ecosystem health. This study provided a scientific theoretical basis for the mathematical evaluation of sustainable coastal ecosystem, which highlighted the management insights into coastal ecosystem health issues.

Suggestions on General Industrial Solid Waste Disposal and Environmental Management

Suggestions on General Industrial Solid Waste Disposal and Environmental Management

Prediction of China’s Industrial Solid Waste Generation Based on the PCA-NARBP Model

Industrial solid waste (ISW) accounts for the most significant proportion of solid waste in China. Improper treatment of ISW will cause significant environmental pollution. As the basis of decision-making and the management of solid waste resource utilization, the accurate prediction of industrial solid waste generation (ISWG) is crucial. Therefore, combined with China’s national conditions, this paper selects 14 influential factors in four aspects: society, economy, environment and technology, and then proposes a new prediction model called the principal component analysis nonlinear autoregressive back propagation (PCA-NARBP) neural network model. Compared with the back propagation (BP) neural network model and nonlinear autoregressive back propagation (NARBP) neural network model, the mean absolute percentage error (MAPE) of this model reaches 1.25%, which shows that it is more accurate, includes fewer errors and is more generalizable. An example is given to verify the effectiveness, feasibility and stability of the model. The forecast results show that the output of ISW in China will still show an upward trend in the next decade, and limit the total amount to about 4.6 billion tons. This can not only provide data support for decision-makers, but also put forward targeted suggestions on the current management situation in China.