scholarly journals Properties of Solid Waste Mixture-Solidified Cu2+-Contaminated Soil

2021 ◽  
Vol 769 (2) ◽  
pp. 022037
Author(s):  
Chongxian Suo ◽  
Jiawei Cao ◽  
Hongyu Cao ◽  
Xiaoqiang Dong
Keyword(s):  
Solid Waste ◽  
Contaminated Soil ◽  
Waste Mixture

Influence and microscopic mechanism of the solid waste-mixture on solidification of Cu2+-contaminated soil

2021 ◽  
Vol 305 ◽  
pp. 124651
Author(s):  
Chongxian Suo ◽  
Peiying Fang ◽  
Hongyu Cao ◽  
Jiawei Cao ◽  
Kaixiang Liu ◽  
...  
Keyword(s):  
Solid Waste ◽  
Contaminated Soil ◽  
Microscopic Mechanism ◽  
Waste Mixture

scholarly journals PRODUCTION OF HIGH EFFICIENT COMPOST FROM ALGAE AND ORGANIC FRACTION SOLID WASTE MIXTURE

2018 ◽  
Vol 22 (02) ◽  
pp. 44-57
Author(s):  
Ahmed Hassoon Ali ◽  
◽  
Zainab Abdul Razaq Nasir ◽  
Younis Swadi Tlaiaa ◽  
Ali Dhamin Khishala ◽  
...  
Keyword(s):  
Solid Waste ◽  
Organic Fraction ◽  
Fraction Solid ◽  
High Efficient ◽  
Waste Mixture

scholarly journals Effect of passive and forced aeration on composting of market solid waste

2020 ◽  
Vol 9 (1) ◽  
pp. 182
Author(s):  
M. Atauzzaman ◽  
Q. H. Bari
Keyword(s):  
Solid Waste ◽  
Total Sample ◽  
Bulking Agent ◽  
Percentage Reduction ◽  
Vegetable Waste ◽  
Volatile Solids ◽  
Before And After ◽  
Waste Mixture ◽  
Forced Aeration ◽  
Daily Time

This study aimed to determine the effect of passive and forced aeration on composting of market wastes. Suitable vegetable waste, waste paper and sawdust as bulking agent were mixed with the proportion 75:10:15. Temperature inside composting reactors was measured daily time to time. Total sample and volatile solids were determined before and after composting of waste mixture with both passive and forced aeration. Temperature increased to maximum 52 ºC for passive aeration and 54 ºC for forced aeration. The percentage reduction in total sample was found to be greater for forced aeration than passive aeration. The volatile solids decreased with time at the end of both processes. The extent of volatile solids degradation of waste mixture with time was determined through forced aeration for a series of composting process. Total sample and volatile solids were determined at 2, 3 or 4 days interval. The percentage reductions in total    sample and volatile solids were found to be varied from 3 to 68 % and 4 to 55% respectively. The percentage reduction in volatile solids increased with time. There is a possibility of recycling the waste mixture in the form of composting.  

scholarly journals Technologically significant properties of municipal solid waste compost

2020 ◽  
Vol 175 ◽  
pp. 12015 ◽  
Author(s):  
Grigorii Kozlov ◽  
Mikhail Pushkarev ◽  
Dmitry Danilovich ◽  
Alexander Garabadzhiu
Keyword(s):  
Chemical Composition ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Heat Generation ◽  
Contaminated Soil ◽  
Dry Weight ◽  
Point Of View ◽  
First Year ◽  
Toxic Substances ◽  
Msw Compost

The paper presents the results of studies of the technologically significant properties of municipal solid waste (MSW) compost produced by MSW processing enterprises in St. Petersburg (Russia) where the Dano drum process is implemented. The chemical and microbiological composition of compost, as well as heat during ripening, are investigated. The chemical composition of industrial compost produced in St. Petersburg does not make it possible to use it as fertilizers and soil in agriculture. From the microbiological point of view, NSW compost is not dangerous, but the content of indicator groups of microorganisms classifies it as contaminated soil. The heat generation of compost during ripening is uneven - the largest share of heat 78.5% is released in the first year of maturation. In absolute terms, this value is 3250 kJ/kg by dry weight. To ensure the process is carried out during a period when the compost temperature is higher than the ambient temperature, toxic substances must be added to the compost in an amount not more than 400 times the pollutant content in waste of the 4th hazardclass.

scholarly journals MATHEMATICAL APPROACH ON HOUSEHOLD WASTE CAUSING ENVIRONMENTAL POLLUTANTS DUE TO LANDFILL AND TREATMENTS

2020 ◽  
Vol 5 (2) ◽  
pp. 266-282
Author(s):  
Nita Shah ◽  
Moksha Satia ◽  
Foram Thakkar
Keyword(s):  
Solid Waste ◽  
Environmental Pollutants ◽  
Treatment Plant ◽  
Vital Role ◽  
Household Waste ◽  
Household Solid Waste ◽  
Hazardous Solid Waste ◽  
Linear Differential ◽  
Waste Mixture ◽  
The Stability

Household solid waste is the solid waste mixture of garbage and rubbish which comes during the use of various products in daily life. It also called as domestic waste or residential waste. It may fall into two categories either hazardous or non-hazardous which are stored and forsaken directly to the landfills. This is how household solid waste plays vital role in spreading environmental pollutants. For reduction of the pollution, treatment plant is constructed for hazardous solid waste and compost plant is organized for non-hazardous solid waste. In this paper, we have developed a system of non-linear differential equations to analyse the household solid waste storage. In order of preventive measures, five various controls are given to the different compartments. The basic reproduction number and the stability are derived to check the endurance of the model. The numerical simulation is also done using validated data.

Biosurfactant Addition into Solvent Extraction Process of Oily Contaminated Solid Waste

2020 ◽  
Author(s):  
L. Fitriyani
Keyword(s):  
Solvent Extraction ◽  
Solid Waste ◽  
Oil Recovery ◽  
Contaminated Soil ◽  
Large Scale ◽  
Treatment Process ◽  
Extraction Process ◽  
Contaminated Site ◽  
Solvent Ratio ◽  
Duration Of Treatment

Solvent extraction has been used in industry or many purposes for years, including to recover oil at contaminated soil. Certain solvents and temperature ranges have been chosen to increase the oil recovery rate of extraction process. The Study observed the implementation of biosurfactant at the extraction process to perform reduction of total petroleum hydrocarbon (TPH) concentration of oily contaminated soil. In order to optimize TPH removal, extraction were conducted for multiple stages. Biosurfactant extraction result were also compared to solvent extraction process which acetone and toluene have been selected to extract oil content from contaminated soil by using solvent extraction process. The combination treatments with biosurfactant were also involving variety of centrifugation process with 1000 rpm (1570 g) operational speed. Duration of treatment process was 10 minutes with some variations of solid to solvent ratio. During the experiments comparison result between varies treatment process provides alternatives to treat oily contaminated soil by using extraction process. Compatibility among solvents, biosurfactants, types of oily contaminated solid waste were also observed to seek possibility on large scale of treatment process implementation both insitu at the contaminated site and exsitu at integrated waste treatment facility.

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