In this study, biogas residue fermented by engineering was used as compost raw material, and different quality biochar added in the composting process to explore effect of on transformation heavy metals process. The comprehensively analyzed with potential ecological risk assessment redundancy analysis. addition 10.0% during had a strong passivation exchangeable Cu Cd, rates 11.75 63.89%, respec...

The sewage sludge production in Egypt is rapidly increasing resulting from the continuous increase of population, urban planning and industrial developments. This sludge needs to be adequately treated and environmentally managed to reduce the negative impacts of its application or disposal. Therefore, the main currently pressing needs are to find/develop more efficient, economical and sustainab...

In the present study, integrated models have been developed to find out the most appropriate cost of municipal solid waste (MSW) disposal using two potential and widely used methodologies, viz. landfill system with gas recovery (LFSGR) and aerobic composting (AC). Objective functions with important costs and benefits including externalities were developed to find out the net unit cost of dispos...

The Minang Bangkit Merbabu Farmer Group use organic materials and produce their own liquid fertilizer. This fertilizer is made of varied ingredients: rabbit urine, cow's milk, free-range chicken eggs, palm sugar, coconut water, pineapple, shrimp paste, bamboo roots, ginger, turmeric. Composting strongly affected by pH aeration method. Liquid farmers usually have an initial around 3.7. mixture w...

Aerobic composting is widely used worldwide as a natural process for handling human waste. Such waste often contains pharmaceutical residues from consumption, yet their impact on has not been studied. The aim of this study to investigate the antihistamine cimetidine (10 mg/kg, 100 mg/kg) aerobic feces. key results show that 10 mg/kg accelerates temperature increase and moisture removal substrat...

We demonstrate complete removal of 2,4,6-trinitrotoluene (TNT) in 15 days using an in-vessel composting system, which is amended with TNT-degrading bacteria strains. A mixture of TNT, food waste, manure, wood chips, soil and TNT-degrading bacteria consortium are co-composted for 15 days in an aerobic environment. Variations in the TNT degradation rates are assessed when composting reactors are ...

In China, the treatment of pig manure for land application is an important issue. this paper, green synthesized iron nanoparticles (G-nFe) were evaluated their effectiveness in aerobic composting manure. G-nFe evenly mixed into compost, and pH oxidation-reduction potential (ORP) compost presence both decreased. FTIR showed that promoted formation humus during composting. The addition (200 mL kg...

Composting is a technological process of waste management that is, with the help microbiological activities in aerobic conditions, organic material decomposed and stabilized into biodegradable mixture transformed compost. This decomposition matter has recently attracted lot attention due to its environmentally friendly methods which additional environmental pollution avoided. The composting fol...

Abstract There have been various environmental issues in the treatment and resource utilisation of solid waste livestock poultry industry Gansu Province. Thus, this study, manure cattle, pig, chicken from farms near Lanzhou University Technology City, Province were selected as raw materials for composting using 10 % corn stalk a leavening agent aerobic static composting. This study focused on b...