نتایج جستجو برای: aerobic composting

تعداد نتایج: 37262  

2013
S. Rahman

Rahman, S. 2012. Suitability of sunflower-hulls-based turkey litter for on-farm turkey carcass composting. Canadian Biosystems Engineering/Le génie des biosystèmes au Canada 54: 6.1-6.8. Environmentally safe disposal of turkey carcasses is vital to a farm’s bio security and prevention of disease outbreak. Carcass disposal by on-farm composting is considered a viable mortality management option....

Journal: :Journal of environmental quality 2001
T H Dao L J Sikora A Hamasaki R L Chaney

Shifts in manure phosphorus (P) chemical forms and pool sizes induced by water treatment residuals and industrial mineral by-products are largely undefined. We conducted a manure P fractionation study to determine mechanisms of reduction of dissolved reactive phosphorus (DRP) in poultry manure upon mineral by-product additions. The effects of composting on the P immobilization efficacy of the b...

Journal: :Ethnologia Europaea 2005

Journal: :Bioresource technology 2012
Ammaiyappan Selvam Zhenyong Zhao Jonathan W C Wong

The fate of chlortetracycline (CTC), sulfadiazine (SDZ) and ciprofloxacin (CIP) during composting of swine manure and their effect on composting process were investigated. Swine manure was spiked with antibiotics, mixed with saw dust (1:1 on DW basis) and composted for 56 d. Antibiotics were spiked to a final concentration of 50 mg/kg CTC+10 mg/kg SDZ+10 mg/kg CIP (High-level) or 5 mg/kg CTC+1 ...

Journal: :Waste management 2004
Christian Zurbrügg Silke Drescher Almitra Patel H C Sharatchandra

The national waste legislation, introduced in India in 2000, endorses the principle of "Recycle Before Disposal" and clearly stipulates composting as an option for organic waste treatment. It also recommends waste separation as prerequisite for treatment. Although various composting schemes of different scale, type and organisational structure currently exist in the country, a general overview ...

Journal: :Ecotoxicology and environmental safety 2000
R Juvonen E Martikainen E Schultz A Joutti J Ahtiainen M Lehtokari

Heterogeneous oily waste from an old dumping site was composted in three windrows constructed from different proportions of waste, sewage sludge, and bark. The objectives of this pilot study were to examine the usefulness of composting as a treatment method for this particular waste and to study decontamination in the composting process by using a battery of toxicity tests. Five samples from th...

Journal: :Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA 2005
Kiyohiko Nakasaki Kazuki Nag Shuichi Karita

Using dog food as a model of the organic waste, thermophilic composting was carried out for 14 days at a fixed temperature of 60 degrees C. The relationship between organic matter decomposition measured by CO2 evolution during the bio-stabilization process and microbial succession expressed as the changes over time in the restriction fragment length polymorphism (RFLP) patterns of 16S rDNA sequ...

2009
Cristina Ferreira Silva Raquel Santos Azevedo Claudia Braga Romildo da Silva Eustáquio Souza Dias Rosane Freitas Schwan

Edible mushrooms are renowned for their nutritional and medicinal properties and are thus of considerable commercial importance. Mushroom production depends on the chemical composition of the basic substrates and additional supplements employed in the compost as well as on the method of composting. In order to minimise the cost of mushroom production, considerable interest has been shown in the...

2010
M.R.Q. Silva T. R. Naik

Composting industry is a progressive and innovative industry that has been growing worldwide, especially in the last 20 years. Firstly, in this paper, an overview of fundamentals and processes on composting and anaerobic digestion are compiled, showing the versatility and multivariable profile of these processes. Secondly, a methodological proposal for a mid-size city is presented. It is propos...

2017
Bahman Eghball James F. Power John E. Gilley John W. Doran

Quantification ofnutrient andmass loss during composting isneeded ωunderstand the composting process, to implement methods for nutrient conservation, andto reduce potential adverse environmental impact. Beef cattle feedlot manure was composted in a windrow on an open concrete area in 1992, 1993, and 1994 to determine the amounts ofnutrient, C, and mass loss during composting. The area was enclo...

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