Amount Of Waste Research Articles

Agricultural Wastes and Their By-Products for the Energy Market

The conversion of lignocellulosic agricultural waste into biofuels and other economically valuable compounds can reduce dependence on fossil fuels, reduce harmful gas emissions, support the sustainability of natural resources, including water, and minimize the amount of waste in landfills, thus reducing environmental degradation. In this paper, the conversion of agricultural wastes into biomethane, biohydrogen, biodiesel, bioethanol, biobutanol, and bio-oil is reviewed, with special emphasis on primary and secondary agricultural residues as substrates. Some novel approaches are mentioned that offer opportunities to increase the efficiency of waste valorization, e.g., hybrid systems. In addition to physical, chemical, and biological pretreatment of waste, some combined methods to mitigate the negative effects of various recalcitrant compounds on waste processing (alkali-assisted thermal pretreatment, thermal hydrolysis pretreatment, and alkali pretreatment combined with bioaugmentation) are evaluated. In addition, the production of volatile fatty acids, polyhydroxyalkanoates, biochar, hydrochar, cellulosic nanomaterials, and selected platform chemicals from lignocellulosic waste is described. Finally, the potential uses of biofuels and other recovered products are discussed.

Challenges in the quantification of household food waste: the need for consistent methodologies

Purpose The purpose of this short communication is to shed light on the accuracy of quantification methods of household food waste (HFW).Design/methodology/approach Thirty-seven recently published studies in HFW were surveyed for this commentary. Exemplary methods and findings of these studies were compared.Findings It is challenging to draw conclusions on the amount of the HFW per person/town/country due to the inconsistent and heterogeneous methodologies used. We recommend using direct measurements or triangulation of methods to help ensure valid findings. Governments should incentivize consumers to deliver their food waste to designated locations where weights could accurately be assessed. Monetary or tax incentives could help stimulate an accurate accounting of waste and encourage reductions. Food waste measurements should be consistently reported as kg/person/week.Social implications Food and water security must be provided for all. It is estimated that one-third of edible food for humans is currently lost or wasted globally. According to the World Food Program (WFP), this is about 1.3 billion tons of food per year and at the same time this wasted food could be sufficient to feed two billion people.Originality/value The aim of this paper is to fill a gap in the literature about the magnitude and significance of HFW and its impact on the environment and social welfare. Currently, there are no generally accepted uniform methods of food waste quantification at the household level. This original communication brings the importance and challenges of the quantification of HFW to light.

Valorisation of bread wastes via the bacterial cellulose production

AbstractThe short shelf life of bread can be attributed to changes in its textural and sensory properties, a process termed staling, and large amounts of bread residue and waste are generated daily. Because the main component of bread is starch, the use of bread wastes as a substrate for bacterial cellulose (BC) production can significantly contribute to valorisation and reuse of wastes. This study aimed to investigate the BC production potential of various stale breads, convert these wastes into usable forms for food and other industries, and increase their economic value. Stale breads were hydrolyzed with dilute acid, and BC-producing bacteria from Kombucha tea were isolated and identified as Gluconobacter oxydans MG2021 (GO). BCs were produced from bread hydrolysates with GO and Komagataeibacter hansenii GA2016 (KH), and their properties were examined. The results indicated that stale breads represented a good source for BC production, as high BC yields were obtained using GO (8.81%–25.02%) and all BCs had superior properties such as high crystallinity (75.96%–91.39%), thermal stability, liquid holding capacity, and fine fibers (40.16–85.39 nm). This study demonstrated that bread wastes could be used as a low-cost substrate for large-scale BC production, and the abundance of bread wastes demonstrated their potential as a resource for commercial BC producers.

Research on Fe Removal, Regeneration Process, and Mechanical Properties of Mg Alloy AM50A

In recent years, the widespread application of Mg alloy casting and Mg alloy products has generated a large amount of Mg alloy waste. This experiment used a single factor experimental analysis method to study the optimal process for removing Fe from Mg alloy AM50A waste, and developed an efficient Fe removal and regeneration process for Mg alloy AM50A. It was found that the optimal refining temperature for removing Fe ions was 670 °C, the optimal refining (RJ-2) agent mass ratio was 1.5%, and the optimal refining time was 40 min. Regenerated J40-1.5-AM50A Mg alloy was prepared using the best refining process, and its composition and mechanical properties were tested and analyzed. The experimental results show that the composition of the regenerated J40-1.5-AM50A Mg alloy prepared by this method is consistent with AM50A, with an Fe removal rate of 96.2%. The mechanical properties were improved compared to the original AM50A sample, with a maximum tensile strength increase of 1.611 KN and a tensile strength increase of 26.333 MPa. The elongation after fracture is 2.25 times that of the original sample. Research has shown that the RJ-2 refining agent can provide mechanical properties of magnesium alloys during the refining process. By analyzing the composition, XRD, SEM, and EDS of AM50A (Fe) and J40-1.5-AM50A, it was found that the refining process accelerates the removal of Fe in the form of Fe deposition.

Evaluation of Thermoplastic Starch Contamination in the Mechanical Recycling of High-Density Polyethylene

This research highlights the importance of addressing bioplastic contamination in recycling processes to ensure the quality of recycled material and move towards a more sustainable circular economy. Polyethylene (PE) is a conventional plastic commonly used in packaging for which large amounts of waste are produced; therefore, PE is generally recycled and has an established recycling process. However, the contamination of biodegradable polymers in the PE waste stream could impact recycling. This study, therefore, focuses on polyethylene (PE) that has been polluted with a commercial thermoplastic starch polymer (TPS), as both materials are used to produce plastic films and bags, so cross-contamination is very likely to occur in waste separation. To achieve this, recycled PE was blended with small quantities of the commercial TPS and processed through melt extrusion and injection molding, and it was further characterized. The results indicate that the PE-TPS blend lacks miscibility, evidenced by deteriorated microstructure and mechanical properties. In addition, the presence of the commercial TPS affects the thermal stability, oxidation, and color of the recycled PE.

Machine Learning Application in Horticulture and Prospects for Predicting Fresh Produce Losses and Waste: A Review.

The current review examines the state of knowledge and research on machine learning (ML) applications in horticultural production and the potential for predicting fresh produce losses and waste. Recently, ML has been increasingly applied in horticulture for efficient and accurate operations. Given the health benefits of fresh produce and the need for food and nutrition security, efficient horticultural production and postharvest management are important. This review aims to assess the application of ML in preharvest and postharvest horticulture and the potential of ML in reducing postharvest losses and waste by predicting their magnitude, which is crucial for management practices and policymaking in loss and waste reduction. The review starts by assessing the application of ML in preharvest horticulture. It then presents the application of ML in postharvest handling and processing, and lastly, the prospects for its application in postharvest loss and waste quantification. The findings revealed that several ML algorithms perform satisfactorily in classification and prediction tasks. Based on that, there is a need to further investigate the suitability of more models or a combination of models with a higher potential for classification and prediction. Overall, the review suggested possible future directions for research related to the application of ML in postharvest losses and waste quantification.

Assessing the current status, classification, collection, and transportation of domestic solid waste in Hai Hau district, Nam Dinh province

The article presents the current status, classification, collection, and transportation of domestic solid waste in Hai Hau district, Nam Dinh province. The research results show that the volume of domestic solid waste generated in Hai Hau district, Nam Dinh province is 147.468 tons/day and the average generation coefficient is 0.53 kg/person/day. The main source of waste generation is the daily activities of households, markets, and commercial centres... The composition of domestic solid waste includes organic matter (about 74.64%), recyclable inorganic matter (about 14.32%), non-recyclable inorganic matter (about 10.36%), and a small amount of hazardous solid waste (about 0.68%). Regarding the classification of domestic solid waste at source, people are aware and have classified it themselves but still do not fully understand the meaning and benefit of classifying solid waste at source. Regarding collection and transportation, people actively participate in the environmental cleaning programs, apply solutions to minimise domestic solid waste, and coordinate with the unit in charge of collecting and transporting domestic solid waste. The amount of domestic solid waste generated by 2030 is forecasted to be 156,144 tons/day, equivalent to 56,992.62 tons/year.

Development of a decision support tool for choosing the optimal medical waste management scenario using waste flow analysis and life cycle cost

Every year, healthcare centers such as hospitals produce millions of metric tons of medical waste. The effective management of medical waste is crucial due to its environmental consequence, so decision-making tools are necessary for this purpose in various aspects, including cost-benefit balance. In this study official data on the quantity and composition of medical waste in five hospitals in Tehran were analyzed. An economic model based on the cost of hospital waste management steps from storage to disposal was used to interpret the situation. Different scenarios of waste management were defined by the variables of segregation ratio and disinfection types. The results showed that in the studied hospitals, on average 3600 kg/day of solid waste was generated, of which 52.53 % was infectious waste and 1.58 % was chemical and pharmaceutical waste. The ratio of collection, disinfection, and transportation in the total costs of hospital waste management was 12.3, 67.3, and 16.5 %, respectively. The effect of change in segregation ratio and change in the location of disinfection in the cost of hospital waste management was 16 % and 37 %, respectively. Also, reducing the emission of pollutants such as PAHs into the indoor air was one of the consequences of changing the studied approach in the scenarios. Hospitals and health policymakers could use these results to implement more cost-effective and environmentally sustainable hospital waste management strategies.

Utilization of Agricultural Waste for the Cultivation of Pleurotus Mushrooms in Thailand

Thailand is one of the major agricultural production countries in the world. Therefore, large amounts of agricultural waste are generated as by-products of the agroindustry. The wastes are usually discarded or burnt, resulting in environmental pollution. The main goal of this research was to evaluate the use of agricultural waste for mushroom cultivation. A total of 15 mushroom isolates were recovered from mother spawns and basidiocarps. They were screened for their cellulolytic enzyme activity on Czapek agar using carboxymethyl cellulose (CMC) as the sole carbon source. Two isolates of the oyster mushrooms, Pleurotus pulmonarius PP6 and Pleurotus ostreatus PO3, produced the best enzyme activities. To observe the mycelial growth on agricultural waste, the two oyster mushroom candidates were cultured in jars containing five different types of agricultural waste: corn husk, rice straw, coconut meal, coconut husk and sugarcane bagasse, and the jars were incubated at 25°C for six weeks. The results show that both isolates grew best on coconut meal, producing very densely packed mycelia. Meanwhile, corn husk and rice straw were also good sources for oyster mushroom cultivation. This study shows that these three substrates have the potential to be utilized in mushroom cultivation on a commercial scale.

The Impact of Natural Stone Waste Pollution on The Distribution and Abundance of Phytoplankton in Cirebon District

The natural stone industry in Cirebon Regency produces large amounts of liquid waste which is directly discharged into rivers. The sludge resulting from the natural stone washing process contains high levels of suspended material, causing water pollution and disrupting the life of aquatic organisms including phytoplankton. Phytoplankton have an important ecological role as primary producers and food sources for other organisms, where their distribution and abundance are strongly influenced by various environmental factors. This research aims to determine the impact of natural stone waste pollution on the abundance and structure of phytoplankton communities in several water locations in the Jamblang watershed. A total of three observation stations were selected using a purposive sampling method at several points in the Jamblang Watershed, Cirebon Regency. The research results showed that phytoplankton were found at all observation stations with the identified types consisting of four classes, namely Bacillariophyceae (16 genera), Chlorophyceae (4 genera), Cyanophyceae (4 genera) and Euglenophyceae (2 genera). Bacillariophyceae is the most diverse class, while Oscillatoria sp. from the Cyanophyceae class was found to be the most abundant at all stations. The abundance of phytoplankton ranged between 716,587 - 1,332,122 cell/m3, where the highest abundance was found at station 2. The ecological index showed that the diversity and uniformity of phytoplankton at all stations was in the medium category. Species dominance at station 2 and station 3 is low, while at station 1 tends to have greater dominance than at other stations. Overall, from the results of calculations of abundance and community structure, several phytoplankton species show resistance to water conditions polluted by natural stone waste and other anthropogenic waste, especially from the Bacillariophyceae and Cyanophyceae classes which can be used as indicators of polluted waters.

Trypan blue dye decolorization by Aeromonas caviae isolated from water sewage in Jakarta, Indonesia

Abstract. Pinontoan R, Susanto TSR, Lucy J, Angelina C, Soentoro SE, Purnomo JS, Cornelia M. 2024. Trypan blue dye decolorization by Aeromonas caviae isolated from water sewage in Jakarta, Indonesia. Biodiversitas 25: 1631-1637. The textile industry generates a substantial amount of hazardous chemical waste, which requires proper treatment to mitigate negative environmental and health consequences if left untreated. Studies on the removal of Trypan Blue (TB), a widely used commercial diazo textile dye, by indigenous bacteria are limited. Therefore, this study aimed to isolate, identify, and characterize microorganisms capable of decolorizing TB in textile dye-contaminated wastewater from Jakarta. Microorganisms were initially screened for decolorization activity in solid media containing TB. Among the isolated strains, TB2 isolate exhibited the highest decolorizing potential and was selected for further analysis. The morphological, biochemical, molecular, and phylogenetic characteristics of the TB2 isolate revealed that it belonged to the species Aeromonas caviae. To examine the ability of the isolate to remove TB, various culture conditions, such as pH, temperature, and agitation, were tested. The results demonstrated that the A. caviae TB2 strain could reduce up to 77.10% of TB (0.0025% (w/v)) under static conditions, pH 7.0, and 27°C over six days. To our knowledge, this is the first study to report the ability of the Aeromonas genus to decolorize TB. These results imply the potential use of A. caviae for decolorizing dye-bearing industrial wastewater.

Assessing the circularity status of waste management among manufacturing, waste management, and recycling companies in Kigali, Rwanda

A high quantity of waste is generated from industrial activities by manufacturers across metropolitan cities compared to smaller cities with fewer industrial activities. Adopting Circular Economy principles in waste management has the potential for sustainable waste management to reduce the quantity of waste at dumpsites and harmful emissions from wastes. The study was conducted to assess circularity status and challenges for attaining higher circularity by Kigali’s manufacturing, waste collection, and waste recycling companies using the 10-R framework. The study also sought to build estimates for industrial solid waste quantity and methane emissions for the next 10 years (2020–2030) in Rwanda. A mixed method approach was utilized where primary data was collected from manufacturing, waste collection, and waste recycling companies using a validated questionnaire and an in-depth interview guide. Thematic, descriptive analysis and First Order Decay methods were used to analyze the qualitative, quantitative, and secondary data. Results show that adopting the 10-R principles of circular economy was low and varies across manufacturing, waste collection and recycling companies. There were instances of high adoption of R3-Reuse and R8-Recycle with a mean score of 7.17 and 7.21 among manufacturing companies. R7-Repurpose (8.80) recorded a high adoption rate among waste collection companies and a medium level of adoption for R7-Repurpose (3.50) and R9-Recover (3.00) among recycling companies. The overall low adoption toward attaining circularity was attributed to various economic, institutional, infrastructural, operational, attitudinal, and technological challenges. In 2030, it is projected that 922 Gg of industrial waste will be deposited in solid waste disposal sites in Rwanda; with an estimated methane emission of 157 Gg Carbon dioxide equivalence. It was recommended among others, that human resource capacity development should be prioritized to drive the adoption of the 10-R principles across manufacturing, waste collection, and waste recycling companies in Kigali, which can reduce the quantity of wastes that ends at dumpsites and methane emissions that contribute significantly to global warming.

Contribution of Livestock Farming to Environmental Pollution in China

Purpose: The aim of the study was to examine contribution of livestock farming to environmental pollution in China. Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries. Findings: The study found that livestock farming in China significantly contributes to environmental pollution, posing substantial challenges to water, air, and soil quality. Intensive livestock operations, characterized by concentrated animal feeding operations (CAFOs), generate large quantities of animal waste containing nutrients and pathogens that contaminate water bodies. Additionally, livestock farming contributes to air pollution through emissions of ammonia and other pollutants, particularly in areas with intensive farming practices. Soil degradation and nutrient imbalance further exacerbate environmental degradation, with higher livestock densities associated with increased soil compaction and nutrient runoff. Unique Contribution to Theory, Practice and Policy: Tragedy of the Commons & Ecological Modernization Theory may be used to anchor future studies on contribution of livestock farming to environmental pollution in China. Promote the adoption of sustainable livestock management practices through capacity building, training, and extension services for farmers. Encourage the implementation of integrated farming systems that optimize resource use, minimize waste generation, and enhance environmental resilience. Strengthen regulatory frameworks and enforcement mechanisms to ensure compliance with environmental standards and promote responsible livestock production. Implement stringent measures to control water pollution from livestock waste, including mandatory wastewater treatment and monitoring programs.

Improvement of the Marking and Cutting Processes in a Textile Knitwear Company

Esta investigación servirá de antecedente para otras investigaciones que busquen mejorar los procesos productivos de empresas del sector textil y confecciones, planteando preventivamente una solución al excedente de tela que se origina durante el proceso productivo. Además, se abordará cómo mejorar el exceso de residuos de tela en el área de tizado y corte mediante la producción de accesorios y productos adicionales. Por consiguiente, al asignar correctamente los recursos para el mejor aprovechamiento de la tela de temporada, se reducirán costos, lo que mejorará la rentabilidad de la empresa de tejido de punto.

The extract of Cavendish banana (Musa acuminata) peel as antioxidant and anti-aging agents in model yeast Schizosaccharomyces pombe

Banana peel is one of the wastes that can be explored for various applications. Cavendish is among the most highly consumed bananas in the world, which implies a high amount of banana peel waste. Our study evaluated the potential of Cavendish banana peels as the source of antioxidant and anti-aging agents. Antioxidant was extracted using three different solvents, i.e., water, ethyl acetate, and methanol. Each extract was then assayed for antioxidant activity in vitro using a 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. The antioxidant and anti-aging activity of the extracts were further evaluated at the cellular level using the yeast Schizosaccharomyces pombe as a model. Our data indicated that the methanol extract of banana peel showed the highest antioxidant activity with an IC50 value of 253.8 µg mL-1 compared to ethyl acetate and water, yet it was considered weak. Interestingly, the methanol extract (600 ppm) showed antioxidant and anti-aging activities at cellular levels in yeast S. pombe. Therefore, this research reveals the potential for developing banana peel methanol extract as a component of pharmaceutical or cosmetic products with antioxidant and anti-aging properties.

Environmental and Economic Life Cycle Assessment of Enzymatic Hydrolysis-Based Fish Protein and Oil Extraction

As global fish consumption rises, a large amount of waste is generated that is generally neglected. Considering the value embedded in these resources, sustainable methods become more important in extracting valuable ingredients from fish processing residues. Enzymatic hydrolysis is a fast and easily reproducible method for recovering protein ingredients and obtaining valuable by-products. To confirm its advantages, an environmental and economic impact assessment is essential. This study overviewed the sustainability and economic viability of extracting protein compounds and oil from Atlantic mackerel processing residues using enzymatic hydrolysis. Life cycle assessment (LCA) and life cycle cost analysis (LCCA) methods were employed. It was found that the climate change impact of the whole process was 0.073 kg CO2-eq per 1 g of fish protein hydrolysate (FPH). As the process produces FPH as the main product and fish oil as the by-product, economic allocation was used to distribute the impacts of FPH and fish oil. The findings of the LCCA showed that producing 1 g of FPH costs EUR 3.68. The contribution analysis indicated the crucial role of electricity and fish in environmental impacts. To ensure the accuracy of the calculation, the results of an LCA study published previously were recalculated. The sensitivity analysis showed that the results were susceptible to the region and source of electricity production. This research provides valuable insights into the sustainability and economic aspects of using enzymatic hydrolysis for extracting protein ingredients and oils from Atlantic mackerel. This can inform future investigations of environmentally friendly and economically viable solutions for extracting fish ingredients.

Combining Solution-Blowing and Melt-Blowing Techniques to Produce an Efficient Non-Woven Filter

New substances and particles appearing in the environment following technological development pose new challenges for separation methods. Moreover, the growing amount of waste also forces us to look for environmentally friendly solutions. One way to create filtration structures with the desired properties is to combine known techniques, thanks to which the advantages of one technique complement the deficiencies and disadvantages of another. Combining the melt-blowing and solution-blowing processes seems to be promising. Fibres created from melt-blowing will provide mechanical strength, while solution-blowing will allow the introduction of nanofibres into the structure with unique filtration and functional properties. Both methods enable working with biodegradable polymers, so the resulting filter can also be environmentally friendly after operation. Our research aimed to check whether combining two fibre production techniques (melt-blown and solution-blowing) is possible and how the joining method will affect the final product. We created a multilayer structure by placing a layer of solution-blowing nanofibres between melt-blown layers, and a mixed structure by simultaneous melt-blowing and solution-blowing. The created multilayer structure was characterised by high filtration efficiency and high-pressure drop. In contrast, the mixed structure achieved a high-quality factor and high mass of deposited droplets per 1 J of energy used for work.

Exploring the metabolic characteristic of express packaging waste to promote the synergy of pollution and carbon reduction

With the rapid and prosperous development of China's express delivery industry, the environmental issue of packaging waste has become increasingly pressing. Express packaging is diversified and complicated, with obstacles of excessive packaging and low recycling rate, which pose challenges to the low-carbon development of the express industry. At present, the amount and flow of express packaging waste are indistinct, and a systematic assessment of environmental emissions is lacking. In this study, the amount of express packaging waste generated is assessed, the measurement model is constructed through field research, and the overall material metabolism pattern is analyzed using material flow analysis (MFA). Further, life cycle assessment (LCA) is adopted to assess the environmental impact of treating 1 ton of express packaging waste and its potential for pollution and carbon reduction. The findings reveal that China generated 16.11 million tons of express packaging waste in 2023, predominantly paper and plastic. The comprehensive utilization rates of paper and plastic express packaging waste are 50.1% and 13.2%, respectively. Most plastic packaging is mixed in municipal waste to be landfilled or incinerated. Treatment of 1 ton of express packaging waste generates 796 kg CO2 eq. of greenhouse gas emissions. The reuse, recycling, and incineration result in avoided environmental burdens. By 2030, source reduction, increasing the proportion of incineration and recycling, and promoting recycled packaging could diminish most environmental impacts by 10% to 40% and synergistically reduce CO2 and pollutants such as PM2.5 and heavy metals. This study systematically explores the environmental problems of express packaging waste in China. It can provide data support and policy recommendations for the long-term green development of the express industry.

Effect of Reinforcement Ratio and Particle Size on the Physical and Mechanical Performance of Epoxy Matrix Panels and Waste Wood from Iroko Chlorophora excelsa from Cameroon

The use of local materials developed from natural reinforcements remains a major challenge for many researchers in the development of the industry and the fight against pollution. The wood industry generates large quantities of environmental waste, including Iroko wood. To give Iroko a second life, this study uses Iroko sawdust waste to make an epoxy matrix composite material. The composite was produced using a cold pressing technique based on moving the top and bottom plates to a thickness of 10 mm. On this basis, three particle sizes [t < 0.35[, [0.35–0.63[, and [0.63–1[ were used, as well as three reinforcement (R)/matrix (M) percentages of 50R/50M, 60R/40M, and 70R/30M, where R is the reinforcement percentage and M is the matrix percentage. The physical tests, apparent and real density, porosity, moisture content, water absorption rate, absorption and desorption kinetics, diffusion theory, and activation energy were determined by the gravimetric method. A three-point bending test was carried out in accordance with the ASTM D790 for mechanical tests. The results show that the addition of Iroko particles lightens the material by reducing its density. The hydrophilic nature of Iroko particles increases the absorption rate and porosity, with good diffusion capacity as the particle size and percentage increase. The material produced can be light and porous, with possible applications in thermal insulation. In terms of kinetics, Verma et al.’s model best correlates the experimental desorption points for the 3 isotherms, while Page’s model best correlates the water absorption points. The mechanical results show that Young’s modulus and stress at break decrease with an increase in the reinforcement percentage and particle size. The mechanical results can be used to define the material’s applications in construction and furniture. In accordance with the EN312 standard, the composites produced can be classified as type 2 lightweight materials, suitable for use in dry and damp areas.

Research on in-Situ Covering and Remediation Technology for Polluted Sediment in Village and Town Ponds

With the rapid development of the social economy and the continuous acceleration of urbanization, the development gap between urban and rural areas has become increasingly large. The infrastructure construction of villages and towns has seriously lagged behind urban development, resulting in a large amount of household waste and industrial wastewater being discharged into village ponds and rivers in daily life and development. This has led to an increasing amount of sludge at the bottom of village ponds, as well as the accumulation of heavy metal pollutants, oxygen consuming substances, and other substances, which can easily cause serious ecological environment pollution. By attaching great importance to this and adopting in-situ covering and restoration technology of sediment, we can effectively control the pollution of sediment in village ponds and protect the environment of villages and towns.