Improper Waste Disposal Research Articles

CLINICALAND ETIOPATHOLOGICAL CORRELATION OF ACUTE INFECTIVE HEPATITIS AND FULMINANT HEPATIC FAILURE IN PEDIATRIC PATIENTS

INTRODUCTION- In India, infectious Hepatitis is one of the major health care burdens, with viral hepatitis being the most common culprit, followed by dengue, typhoid, and malarial hepatitis. Fulminant hepatitis manifests as a sudden abnormality in liver function enzymes in a child with no prior hepatic pathology. AIMS AND OBJECTS- This study was aimed at identifying the various etiological factors and correlating clinical features of viral hepatitis, and fulminant liver failure. MATERIALS AND METHODS- This observational study was conducted in the paediatrics in-patient department of S.P. Medical College & P.B.M. Associated Group of Hospitals, Bikaner (Rajasthan) over a period of one year.A total of 125 children with a clinical and lab-conrmed diagnosis of acute infective hepatitis were included. Data includingclinical signs, symptoms, and laboratory parameters were obtained and analyzed. RESULTS- Most commonly affected age group was between 5-10 years with the mean age being 7.1±4.6 years. The most common etiology was hepatitis A (n=39), followed by hepatitis E (n=24) and mixed hepatitis A virus (HAV)/hepatitis E virus (HAE) infection (n=20). Other causative organisms were dengue virus (n=16), typhoid (n=13), malaria (n=9), and hepatitis B. The most common clinical symptoms were fever, jaundice, loss of appetite, and vomiting/nausea. There were some clinical features seen more commonly in case of infection with certain organisms. High frequency of diarrhoea, arthralgia, and thrombocytopenia was seen with HAV. Neurological, renal complications and high mortality were associated with HEV or HAV/HEV co-infection. While retroorbital pain and purpuric rash were exclusivewith dengue, malarial hepatitis was strongly associated with pallor and altered sensorium. CONCLUSION- Acute infective hepatitis is most commonly caused by HAV and HEV in Western Rajasthan. It is imperative to educate the masses regarding the prevention of common infections transmissible by infected drinking water, poor hand hygiene, improper waste disposal, and open defecation.

Effectiveness of environmental health and loss framing on household pharmaceutical take-back schemes

Pharmaceutical pollution poses an emerging environmental and public health problem. Together with increasing medicine use and pharmaceutical manufacturing effluents, improper disposal of household pharmaceutical waste significantly adds to this issue, despite pharmaceutical take-back schemes having been established in many countries. Even where take-back schemes are available return rates remain low. Previous studies have used only survey and interview methodologies and therefore merely described the situation. This study goes further, exploring not only the effects of the availability of information on pharmaceutical take-back schemes but also the effects of the framing of information provided to individuals on their intentions and reported behaviours to collect unused and/or expired household pharmaceuticals and return them to a pharmacy. The data were collected throughout three preregistered, randomised experiments with representative samples (N = 3754). The results show that tapping into individuals’ pre-existing conception of the problem and psychological biases through the delivery of environmental health, loss framing information highly increased the odds of returning household pharmaceutical waste. This result is long-lasting (Studies 2 and 3), is found in various European countries (Study 1), and remains robust in all studies. Based on the results, we suggest that, in the context of household pharmaceutical waste management, psychologically informed, proactive approaches combined with targeted local action and services can reduce the psychological and practical barriers to pro-health and pro-environmental behaviour. The findings are used to support a policy recommendation that is cost-efficient, easy to use, and effective.

Application of geostatistical techniques in the assessment of groundwater contamination in the Afigya Kwabre District of Ghana

Geostatistical techniques have been applied to successfully assess the groundwater quality in the Afigya Kwabre District of Ghana. Forty boreholes were sampled for physicochemical and bacteriological characteristics of the groundwater. Principal component analysis revealed that seven components contain 81.01% of the variation of the original variables. Factor 1 accounted for 31.34% of the total variance, factor 2 accounted for 10.97%, third and fourth factors explained 8.41% and 8.19%, the fifth factor showed 8.13% while the sixth and seventh components showed 7.76% and 6.21% variances, respectively. R-mode cluster analysis showed five clusters. Cluster 1 was made of Na+, Cl−, TH, SiO2, HCO3− and TDS. Cluster 2 and cluster 3 contained dissolved oxygen (DO), pH, K+ and F−, Br, respectively. Cluster 4 was made of PO43− and NO3−and Cluster 5 had Ca2+, Mg2+, Total. coli, Fecal. coli, SO42−, and salinity. Correlation analysis revealed a strong positive correlation between EC and TDS, Mg2+, Ca2+, Mn, Na+, TH, HCO3−; pH and Ca2+, HCO3−; Mg2+ and Ca2+, Na+, TH, HCO3−, Fe; Ca2+ and Na+, TH, HCO3−; Cu and PO43−; Mn and Na+; F− and SO42− as well as NO3− and PO43−. The study revealed the impact of both natural processes such as rock mineral weathering, ion exchange, and anthropogenic activities such as application of agrochemicals on farmlands and improper waste disposal on the geochemistry of the groundwater. Generally, the groundwater in the District has a low pH. However, it is generally suitable for domestic use with exception of a few samples with high Fe, F-, Pb concentrations and Escherichia coliform and fecal coliform contaminations. The study has shown that the geostatistical technique is useful in determining the state of water contamination, the extent of contamination, and possible source of contaminants, as well as presenting a guideline for effective groundwater resource management.

Seasonal Variations of Polycyclic Aromatic Hydrocarbons in the Muscle Tissue of Silurus triostegus Heckel, 1843 from Derbendikhan Reservoir

Derbendikhan reservoir is located on the southeast of Sulaimani city 35° 6' 35" N, 45° 41' 20" E, it is the second largest reservoir in the Iraqi Kurdistan region at an altitude of 485 m above sea level. It was formed when the dam was constructed in1956–1961. The area is about 114.30 km2 with the maximum depth of 75.0 m. Silurus triostegus is one of twenty genera of fish that are endemic to Derbendikhan reservoir, Seasonal sampling for 64 samples of fish for 11 sites was carried out from November 2018 to August 2019, Fishing was performed with gill nets of 18, 25, 33, 40, and 55 mm inner mesh sizes. The goal of this research is to determine the level of PAHs in, fish muscle of Silurus triostegus, because fish as an important food source for man and it’s the primary indicator of the toxification of streams and lakes, on the other hand, PAH will cause many health problems including cancer, in addition, this information may be used as a database for any environmental modeling in the future, this study was carried out. Results indicate increasing in PAH in the spring season, although, as a result of fishing activities using old boats and ships at a high rate, in addition to the changes of water temperature in different season. PAH in the muscle of fish (0.098–1.271 μg/g) were above the WHO maximum permissible limit of 0.001 μg/g. The main conclusion is that the fish muscle contains high amounts of PAHs through bioaccumulation and biomagnifications. Finally, the lake needs immediate attention to reduce improper waste disposal and improve on measures against indiscriminate dumping of petroleum products and domestic waste in the water, which are the major sources of petrogenic and pyrogenic PAHs should be minimized, and the treatment of the sewage before its discharge into the reservoir.

Role of Combined Na2HPO4 and ZnCl2 in the Unprecedented Catalysis of the Sequential Pretreatment of Sustainable Agricultural and Agro-Industrial Wastes in Boosting Bioethanol Production.

Improper lignocellulosic waste disposal causes severe environmental pollution and health damage. Corn Stover (CS), agricultural, and aseptic packaging, Tetra Pak (TP) cartons, agro-industrial, are two examples of sustainable wastes that are rich in carbohydrate materials and may be used to produce valuable by-products. In addition, attempts were made to enhance cellulose fractionation and improve enzymatic saccharification. In this regard, these two wastes were efficiently employed as substrates for bioethanol production. This research demonstrates the effect of disodium hydrogen phosphate (Na2HPO4) and zinc chloride (ZnCl2) (NZ) as a new catalyst on the development of the sequential pretreatment strategy in the noticeable enzymatic hydrolysis. Physico-chemical changes of the native and the pretreated sustainable wastes were evaluated by compositional analysis, scanning electron microscopy (SEM), X-ray diffractometry (XRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). These investigations showed major structural changes after the optimized sequential pretreatment. This pretreatment not only influences the delignification process, but also affects the functionalization of cellulose chemical structure. NZ released a higher glucose concentration (328.8 and 996.8 mg/dl) than that of ZnCl2 (Z), which released 203.8 and 846.8 mg/dl from CS and TP, respectively. This work led to the production of about 500 mg/dl of ethanol, which is promising and a competitor to other studies. These findings contribute to increasing the versatility in the reuse of agricultural and agro-industrial wastes to promote interaction areas of pollution prevention, industrialization, and clean energy production, to attain the keys of sustainable development goals.

Effect of partial replacement of E-waste as a fine aggregate on compressive behavior of concrete specimens having different geometry with and without CFRP confinement

Nowadays, the improper disposal of electronic waste (E-waste) is leading to environmental pollution and health problems majorly in developing countries. The current research examines the behavior of shredded E-waste fine aggregate concrete strengthened by the use of carbon fiber-reinforced polymer (CFRP) confinement under axial compressive load. The main objective of this study is to investigate the structural behavior of circular and non-circular concrete specimens by partial replacement of E-waste as fine aggregates and confined with CFRP sheets. Tests were performed on a total of 36 concrete specimens. The parameters considered were cross-sectional geometry of circular, rectangular and square concrete specimens, 20% partial replacement of fine aggregates by E-waste, the effect of the corner in case of non-circular specimens, and the number of CFRP sheets. These tests portrayed that the partial replacement of fine aggregates by E-waste aggregates results in decreasing axial compressive strength of concrete specimens. However, the external CFRP confinement increases the axial strength of specimens (a maximum of 71% for circular specimens, 33% for square specimens, and 25% for rectangular specimens). It was also observed that partial replacement of natural fine aggregates by E-waste increased the failure time. For the case of square and rectangular concrete specimens, the ultimate strength was lower than circular specimens for both (with and without CFRP confinement) specimens. Finally, existing strength and strain models developed for FRP-confined concrete were used for theoretical calculations. The theoretical declaration of the existing models indicates that a few of the ultimate strain models lie on the high side and few of the ultimate strain models on the low side in comparison with the experimental findings.

Physical, chemical, and microbial contaminants in food waste management for soil application: A review

Currently, 1.3 billion tonnes of food are thrown away each year, most of which are incinerated or landfilled causing large environmental, social, and economic issues. Therefore, the utilisation of food waste as biofertilisers, such as composts and digestates, is a solution to reduce the problems created by incineration and landfilling whilst simultaneously amending soils. The improper disposal of food wastes and bulking materials can contribute to high levels of contaminants within the end-product. Moreover, the food waste and bulking materials, themselves, may contain trace amounts of contaminants. These contaminants tend to have long half-lives, are easily mobile within soil and plants, can accumulate within the food supply chain, and have moderate to high levels of toxicity. This review aims to examine the current and emerging contaminants of high concern that impact the quality of food-waste fertilisers. The paper presents the volume of current and emerging contaminants of plastics, other physical (particulate) contaminants, heavy metals, pesticides, polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), per- and polyfluoroalkyl substances (PFAS), and pathogens within food-waste composts and digestates. Due to the large extent of organic chemical contaminants and the unknown level of toxicity and persistence, the risk assessment of organic chemical contaminants in the food-supply chain remains largely unknown. This study has presented available data from literature of various contaminants found in food waste, and composts and digestates derived from food waste, and evaluated the data with current regulations globally. Overall, to reduce contaminants in composts and digestates, more studies are required on the implementation of proper disposal separation, effective composting and digestion practices, increased screening of physical contaminants, development of compostable plastics, and increased regulatory policies on emerging, problematic contaminants. Moreover, examination of emerging contaminants in food-waste composts and digestates is needed to ensure food security and reduce future human-health risks.

Effect of high nitrate contamination of groundwater on human health and water quality index in semi-arid region, South India

The specific objective of the present is to evaluate the human health issue due to the continuous consumption of nitrate-contaminated groundwater among the various age groups of people. In the study, 40 groundwater samples were collected during the post-monsoon season, and the major ions were analysed in a laboratory. Chadha plot revealed that weathering of parent rocks, ion exchange process and leaching of salts from the rocks are primary sources of groundwater contamination. Nitrate concentration varied from 24 to 78 mg/L with a mean of 46.45 mg/L. Nitrogen pollution index (NPI) value divulged that 40% and 17.5% of sample locations are moderately and significantly polluted due to elevated nitrate concentration in groundwater. The human health risk assessment model revealed that health issues are among the various age groups which are infants > kids > children > aged peoples > adults. The nitrate’s identified sources are leaching of salts from the rocks, using synthetic fertilizers, uncovered septic tanks and improper disposal of household waste from the residential area. Therefore, periodic inspection of water supply, health check-up and inspection of underground pipelines are the remedial measures that should be taken to reduce the severe effects of nitrate-contaminated drinking water in the study area.

Garbage Collector Machine with Instant Reward

Now a days, waste management is becoming a big issue. Due to improper waste disposal and management, society is facing environmental contamination problems which affects directly on human beings. Garbage separation is also a difficult task for the workers. People are not aware of these problems and do not dispose the garbage at proper places which leads to garbage accumulation at public places. So, to encourage people for proper garbage disposal this paper deals with the concept which will provide platform to dispose of waste in a more scientific and user-friendly. In return they will be rewarded in a cashless manner through means of digital payments and free coupons etc. The nature(wet or dry) and weight of garbage disposed in the machine will be sensed for segregating it in two section. The user will be rewarded according to the weight of garbage. Flow of the operations will be programmed in Arduino Uno micro-controller, sensors and GSM technology. This system leads to collection and segregation of waste at one place, for effective recycling and to reduce environmental. Also this will helps us to contribute in Swachh Bharat Abhiyaan scheme launched by the government of India.

Mechanical Properties of Foamed Concrete with the Addition of Oil Palm Trunk Fibre

Nowadays, in Malaysia, one of the country's challenges is the improper management and disposal of solid waste. The leading sector that generates most of the solid waste in Malaysia is the agricultural sector from oil palm fibre, similar to oil palm trunk fibre, which is also be used as an additive in producing foamed concrete (FC). However, FC presents a weakness in tension, which can be reduced by adding an adequate volume of waste biomass by-product such as oil palm trunk (OPT) fibre. Accordingly, this study was undertaken to investigate the potential of utilising OPT fibre as a reinforcement in FC. There were four different volume fractions of OPT fibre: 0.15%, 0.30%, 0.45%, and 0.60% used as an additive to the FC mix. Two densities, 600 kg/m3 and 1200 kg/m3, were cast and tested. All FC specimens were then prepared and left to cure and exposed to the elements for 7, 28, and 56 days. In this study, mechanical properties were examined. The results showed that the addition of OPT fibre in FC improved the compressive strength, flexural strength, tensile strength of the FC. OPT's surface roughness was proved beneficial for fibre to matrix interfacial bonding since a coarser surface permit OPT fibre and matrix interlocking in the hardened cement matrix. Based on the results of this study for 600 kg/m3 density, 0.30% volume fraction was the optimum amount added to the FC to achieve the best durability and mechanical properties. While for 1200 kg/m3, 0.45% volume fraction of OPT was the optimum percentage.

Perception of Post-Secondary Students on Environmental Practices in Selected Communities in the Philippines: Implications to Climate Change Action

Climate change contributes to disasters in the Philippines. Most human activities have had negative consequences on the environment, exacerbating global warming. Humans contribute to climate change and global warming by burning fossil fuels, cutting down trees, engaging in improper waste disposal, using electricity, and driving a car. This study assessed the environmental practices of communities in Nueva Ecija, Philippines, and their implications for climate change. Respondents were selected using convenient sampling. A questionnaire delivered online was used to elicit their responses then analyzed the data using SPSS. This study revealed that most post-secondary students do not litter but sometimes burn their trash in an open dump. Most of them used LPG as their primary source of fuel for cooking. Rice production is always the same as producing food waste in food production. Garden waste was sometimes produced. Plastic containers are commonly produced as recyclable wastes. They often dispose of wastes in controlled and regulated open dumpsites by their municipality or city. Due to the pandemic, special wastes like face masks and face shields are disposed of daily. Generally, despite no littering behavior, the respondents never burned their trash or threw it on any body of water. They perceived to disagree that these daily community activities contribute to climate change. Lastly, less than half of them affirmed that there are initiative programs at the barangay level to lessen and eliminate community activities that cause climate change.

Hepatitis C virus: Its prevalence, risk factors and genotype distribution in Pakistan

Hepatitis C is a dangerous liver disease transmitted by Hepatitis C virus (HCV). HCV constitutes an important health issue in Pakistan. In Pakistani setting HCV is found frequently and is recognized as an alarming health problem. In this cross sectional study we reviewed published data regarding the seroprevalence of hepatitis C in general community, blood donors and pregnant females and risk factors linked with its occurrence in Pakistan. Data retrieved from163 studies published from 2001 to 2022 was utilized and weighted mean was calculated. Data of 1,875,232 individuals was collected and arranged into three groups, depending upon the population type such as (1) general population, (2) pregnant women, (3) blood donors. General population (765,426) and blood donors (973,260) formed the most of population. Mean Hepatitis C virus prevalence in general public and blood donors was 16.47% and 8.2% respectively. In pregnant females (136,546) the mean frequency was 9.3%. This study exhibits that the frequency of Hepatitis C in general population, pregnant females and blood donors groups was 11.32%. The data suggested that risks factors for transmitting HCV infection in Pakistan include unsterilized needle use, blood transfusions, shaving by barbers, lack of trained staff, needle stick injuries, injection drug users, household contacts/spousal transmission, unsterilized dental and surgical Instruments, improper disposal of hospital waste, poor infra-structure and others. The frequency of HCV infection is distressing in Pakistan. Health education and awareness programs are needed for decreasing Hepatitis C infection in Pakistan. The data necessitate the implementation of preventive and remedial approaches to decrease the disease load and mortality in Pakistan.

Environmental pollution from COVID-19 generated wastes result in widespread recycling of SARS-CoV-2 infection

Wastes generated in the face of COVID-19 pose enormous risks to the environment and heath. Environmental pollution from deficiencies in disposal patterns of hospital wastes may result in widespread recycling of SARS-CoV-2 infection. This paper aimed at creating awareness of the impact of inaptly disposed medical wastes on the environment; produced from managing COVID-19 leading to SARS-CoV-2 widespread recycling. Assemblage of recent and suitable literatures relating to keywords like waste disposal, medical wastes, coronavirus, COVID-19, SARS-CoV-2 and environmental pollution were revised/reviewed. Data suggest that factors like reduced awareness, negligence, ignorance, lack of polices among others are the chief influences contributing to improper medical wastes collection, disposal and management leading to environmental hazards. Therefore, improper disposal of medical wastes can lead to toxic environmental pollution thereby recycling SARS-CoV-2 in the face of COVID-19 management. Hence, incineration after prior disinfection remains the best management option in the prevailing coronavirus era.

Os resíduos sólidos no contexto da educação ambiental, do ecossistema manguezal e da fotografia

Abstract Although mangrove ecosystems are supported by various environmental legislations, they still suffer from improper disposal of solid waste. This study aims to reflect, using photographic images, on the problem of urban solid waste production and its disposal in mangrove areas, with a view to diagnosing necessary environmental education actions for the conservation of ecosystems. The research took place according to the phenomenological method, which seeks to reveal deeper aspects of the context and allowed researchers to have a better understanding of the lived experience. The technique used was the image capture. The concepts studied contributed to the discussion of negative impacts caused in the mangrove by the disposal of some types of waste. It was concluded that photography, as a means of diagnosis, allowed another look at environmental issues.

MULTI-CRITERIA ASSESSMENT (MCA) AND SELECTION OF A SOLID WASTE DISPOSAL SITE WITHIN WA MUNICIPALITY, UPPER WEST REGION, GHANA

Municipal solid waste management is a problem in most developing countries of the world. This is because of its nature, quantity generated, cost of transportation and the selection of final storage sites, which together presents a huge challenge for most municipalities. Improper solid waste disposal has serious environmental consequences which ultimately affects human health. The most common problems associated with improper selection and management of final waste disposal sites for solid waste include disease transmission, fire hazards, odour nuisance, air and water pollution, aesthetic nuisance. Economic cost arising from transportation due to long distances of travel to deposit solid waste also discourage the use of waste disposal sites. Municipal solid waste management is considered one of the most serious environmental and social problems faced by municipal authorities in developing countries.. This work considered the selection of a suitable site for the disposal of municipal solid waste generated within the Wa Municipality of the Upper West Region of Ghana, using Multi-Criteria Evaluation technique in G.I.S. To determine the most suitable waste disposal sites in the municipality, the study integrated environmental and socio-economic criteria including proximity to road networks, distance to residential and important built-up areas, water bodies to select the most optimal location for waste disposal. The results showed a total of three (3) proposed suitable sites, out of which a site with reasonably optimal distance as well as easily accessible to roads was preferred as the most suitable site for the municipal solid waste disposal (landfill) in the Wa Municipality.

Assessment of trace metal content in water, soil and vegetables samples in the vicinity influenced by industrial effluents

Pollution of the environment by trace metals emanating from rapid economic growth and improper waste and effluent disposal is a major concern. In this study trace metal concentrations, Cu, Zn, Pn, Ni, Sn, Cr, Fe, Co Mn and Cd in water, soil and vegetable samples in two urban streams influenced by effluents disposal from two industries were analysed using PG-990 Model atomic absorption spectrophotometer. Analytical results of water samples in the vicinity of the two industries indicated higher concentrations of Cu, Zn, Pn, Ni and Mn above the acceptable limits reported by the FAO/WHO (2000). The concentration of trace metals in soil and vegetables from the two sites were within the tolerance limits reported by FAO/WHO (2004) and FAO/WHO (2007) respectively. Cd was not detected in water and vegetable samples from NASCO household industrial area and also in water samples from Grand Cereals and Oil Mills area. However, the higher concentrations of trace metals in the polluted (either directly or indirectly) areas were higher than the control indicator that industrial activities such as discharge of wastes and effluents into natural ecosystem in most cases without treatment may cause health hazard as well as environmental pollution.

Assessment of the Solid Waste Disposal Method during COVID-19 Period Using the ELECTRE III Method in an Interval-Valued q-Rung Orthopair Fuzzy Approach

As the quantity of garbage created every day rises, solid waste management has become the world’s most important issue. As a result, improper solid waste disposal and major sanitary issues develop, which are only detected after they have become dangerous. Due to the system’s lockdown during the COVID-19 pandemic, this scenario became much more uncertain. We are at the stage to develop and execute effective waste management procedures, as well as long-term policies and forward-thinking programmes that can work even in the most adverse of scenarios. We incorporate major solid waste (organic and inorganic solid wastes) approaches that actually perform well in normal cases byreducing waste and environmental disasters; however, in such an uncertain scenario like the COVID-19 pandemic, the project automatically allows for a larger number of criteria, all of which are dealt with using fuzzy Multi-Criteria Group Decision Making (MCGDM) methods. The ELECTRE III (ELimination Et Choice Translating REality-III) approach, which is a novel decision-making strategy for determining the best way to dispose and reduce garbage by combining traditional ELECTRE III with an interval-valued q-rung orthopair fuzzy set (IVq-ROFS), is described in detail in this article. To confirm the efficacy of the recommended model, a numerical explanation is provided, as well as sensitivity and comparative analyses. Obviously, the findings encourage decision-makers in authorities to deliberate about the proposals before creating solid waste management policies.

Assessing the compaction characteristics of modified soil with Incinerated municipal solid waste

The generation of municipal solid waste is increasing day by day with a rise in population. The improper disposal of waste releases methane which is more responsible for global warming and also it affects the health condition of the surrounding people. It is the need of the hour to identify the effective use of municipal solid waste into by-products or as a replacement material in civil engineering field. In this current work, an attempt is made to assess its effective use. The compaction characteristic of the problematic soil is modified with the inert form of municipal solid waste in stabilizing the soil. From the result, the percentage of the inert material helps with the reduction in dry unit weight and increase in its corresponding moisture content of the soil. This trend is identical to that of any of the inert materials from the industry. Hence it is observed that this material can be utilized in road construction and helps in improving the environment by reducing the quantity of waste disposed in the open dumpsite.

Minimalistic soil microbial fuel cells for bioremediation of recalcitrant pollutants

Increased human, agricultural and industrial activities along with improper waste disposal leads to high levels of soil contamination and accumulation of recalcitrant contaminants in the environment. This global issue demands the use of green and sustainable technologies and soil microbial fuel cells (SMFC) can be a potential solution. We adopted minimalistic designs, based on low-cost carbon materials without any expensive catalyst and membrane, which makes the SMFCs suitable for in-field applications. We investigated the ability of the indigenous microbial population of the soil to use organic contaminants as the source of carbon and the enrichment of the electroactive consortium was monitored over time onto the electrode surface of the SMFCs. We tested performance in soil contaminated with pesticide and soil contaminated with hydrocarbons and compare the microbial enrichment process with respect to the case of non-contaminated soil.

Kinetic Analysis of the Adsorption of Cibacron Blue onto Bean Peel

Biosorption is a kind of sorption technology in which the sorbent is derived from a biological source. At the moment, biosorption is seen as a simple, cost-effective, and environmentally friendly process that might be employed as a viable alternative to conventional techniques of pollution removal. When it comes to improper textile waste disposal, it falls under one of the branches of bioremediation that is used to reduce contamination in the setting of improper textile waste disposal. The sorption isotherm of Cibacron Blue onto bean peel were analyzed using three models—pseudo-1st, pseudo-2nd and Elovich, and fitted using non-linear regression. The Elovich model was the poorest in fitting the curve based on visual observation and the best was pseudo-2nd order based on statistical analysis such as root-mean-square error (RMSE), adjusted coefficient of determination (adjR2), bias factor (BF), accuracy factor (AF), corrected AICc (Akaike Information Criterion), Bayesian Information Criterion (BIC) and Hannan–Quinn information criterion (HQC). Nonlinear regression analysis using the pseudo-2nd order model gave values of equilibrium sorption capacity qe of 6.164 mg/g (95% confidence interval from 5.918 to 6.410 ) and a value of the pseudo-2nd-order rate constant, k2 of 0.034 (95% confidence interval from 0.024 to 0.045). Further analysis is needed to provide proof for the chemisorption mechanism usually tied to this kinetic.