composting anaerobic Articles
-
Composting and biogasification for senna pod waste stabilization
A medical factory in Finland extracts sennocid from pods of a senna plant with a solvent containing methanol and water. Sennocid is the active compound in some constipation medicines (Otavan Iso Kasvitietosanankirja, 1981). The extraction process produces 50 m3 of pod waste weekly. In 1998, 757 tons of pod waste was produced. The water and methanol contents of the waste are approximately 25 w/w-% ...
By ORBIT e.V.
-
Introduction of composted digestates in agriculture
Municipal organic waste is increasingly recycled by aerobic composting or anaerobic digestion procedures. In 1997, 230 000 Mg organic waste were composted and used for agriculture in the region of Cologne, which is an increase by 70% compared to 1994 (Anonymous, 1999). Therefore, the effects of compost on the soil and the plants require studies on:- its nutrient contents to contribute to the ...
By ORBIT e.V.
-
Basic process of manure fertilizer production from farm manure
The composting method of organic manure production is a process of mineral, humic and harmless degradation of organic matter in solid manure by microorganism under the condition of artificial control of water, carbon nitrogen ratio and ventilation. Composting is mainly divided into aerobic composting and anaerobic composting, which is mainly aerobic composting at present. Composting manure ...
-
Effects of the anaerobic biowaste treatment processes Management on the digestate quality (residues from Digestion/compost, process water/wastewater)
Regarding the municipally-collected biowaste amount in Germany, a quantity of 90 - 100 kg/ per annum per citizen is registered (Gallenkemper and Doedens, 1994). That results in an annual biowaste amount of 6.3 to 7 million tons in the Federal Republic of Germany (FRG), whereby also sewage sludges and biogenic, industrial wastes are added. According to Hochrein (1994) about 3 million tons of ...
By ORBIT e.V.
-
Perspectives on organic waste recovery relative to composting and anaerobic digestion
Generally speaking, organic waste renders its self suitable for recovery purposes owing to the nutrient elements it contains and the energy stored in the biochemical bonds of its constituent organic compounds. Both composting and anaerobic digestion (AD) have been used since a long time ago in reclaiming organic material. It seems that the first modern composting process was developed in 1920s ...
By ORBIT e.V.
-
Perspectives on organic waste recovery relative to composting and anaerobic digestion
Generally speaking, organic waste renders its self suitable for recovery purposes owing to the nutrient elements it contains and the energy stored in the biochemical bonds of its constituent organic compounds. Both composting and anaerobic digestion (AD) have been used since a long time ago in reclaiming organic material. It seems that the first modern composting process was developed in 1920s ...
By ORBIT e.V.
-
Composting in flanders: the vlaco experience
Currently, the Flanders waste policy is based on the so-called ‘ladder of Lansink’. Six aerobic composting and one anaerobic digestion plant are operational for the treatment of biowaste. Some new composting plants are foreseen for 1999 and/or 2000. Composting retention time varies from 10 to 15 weeks. Green waste is treated in 15 open air composting plants. With respect to the use of compost ...
By ORBIT e.V.
-
Palm oil mill effluent treatment and utilization to ensure the sustainability of palm oil industries
The purpose of this study was to evaluate the current condition of palm oil mill effluent (POME) treatment and utilization and to propose alternative scenarios to improve the sustainability of palm oil industries. The research was conducted through field survey at some palm oil mills in Indonesia, in which different waste management systems were used. Laboratory experiment was also carried ...
-
Palm oil mill effluent treatment and utilization to ensure the sustainability of palm oil industries
The purpose of this study was to evaluate the current condition of palm oil mill effluent (POME) treatment and utilization and to propose alternative scenarios to improve the sustainability of palm oil industries. The research was conducted through field survey at some palm oil mills in Indonesia, in which different waste management systems were used. Laboratory experiment was also carried ...
-
A study on Air Filled Porosity evolution in sludge composting
Air Filled Porosity (AFP) is a key parameter in the composting process, conditioning oxygen availability and heat accumulation. Air pycnometry is considered the most adequate methodology for AFP determination. This technique requires withdrawing a sample of material from the composting mass for AFP measurement, which may alter its physical characteristics. A novel strategy that permits to measure ...
-
Commercial composting provides food for thought
The retail sector and food manufacturers produce a mountain of waste but, unlike householders, they cannot simply throw it in the compost and wait for it to rot down. The Compost Association told edie about the obstacles in the way of recycling waste from the commercial sector. Compared to household domestic waste, biodegradable matter from the retail and catering sector represents only a small ...
-
Evaluating the potential of an electronic nose for detecting the onset of anaerobic conditions during composting
Most bad odours in composting plants are formed under anaerobic conditions and often they could be avoided if detected early enough. In this project an electronic nose was used to evaluate the odours produced during a composting process at bench scale. The electronic nose consists of an array of electronic chemical sensors with partial specificity and an appropriate pattern recognition system ...
By ORBIT e.V.
-
Composting: Art and science of organic waste conversion to a valuable soil resource
Raw organic materials such as grass clippings and manure are transformed into stable soil-like humic compounds through decomposition in the composting process. Composting is an age-old practice found in various settings, ranging from domestic to industrial. Compost maker machine is becoming an increasingly practical method of organic waste disposal when landfills reach capacity ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you