Composting swine slurries has several advantages, liquid slurries are converted to solids at lower moisture, the total volume and weight of material is reduced and the stabilized product is more easily transported off-site. Despite this, swine waste is generally stored, treated and applied in its liquid form. High-rise finishing facilities (HRFF) permit liquid slurries to be converted to solids...

Composting (aerobic treatment of organic wastes) and digestion (anaerobic treatment of organicwastes combined with biogas production) are important waste management strategies with increasingsignificance in the European Union and Switzerland. Most of the compost produced is applied toagricultural soils, which hereby recycles nutrients and influences soil properties beneficially. How...

Medium Density Fibreboard (MDF) sawdust is an important source of carbon and is therefore in demand as an amendment in commercial municipal solid waste (MSW) composting operations. However, MDF contains formaldehyde which causes two concerns. The first one is that the bactericidal and fungicidal properties of formaldehyde may adversely affect the composting process. The second one is that forma...

Compost stability was quantified using dissolved oxygen (D. 0.) respirometry during composting of municipal solid waste (MSW) in a pilot-scale system. Changes in stability of samples taken at various times during the composting process were verified with chemical and physical tests. Rates of change of oxygen level in air over a compost sample incubated in a flask at 37°C were converted to a rat...

The urban development program will have consequences for the generation of waste. Urban organic waste includes forest/city park plant waste, market and household in Jambangan village environment causes environmental social problems. Community empowerment activities at “Satu Padu” farmer group, Village, Surabaya aim to provide knowledge about managing harmful that is processed into compost liqui...

Urban areas typically have a high degree of impervious surfaces— that is, roads, parking lots, rooftops, and other surfaces that impede the movement of water into the soil. In predevelopment areas with natural ground cover, over half of precipitation infiltrates the soil to replenish groundwater tables, and only a small amount (10%) remains as runoff into stormwater systems, rivers, and lakes. ...

During composting, the composition of microbial communities is subject to constant change owing to interactions with fluctuating physicochemical parameters. This study explored the changes in bacterial and fungal communities during cattle farm waste composting and aimed to identify and prioritize the contributing physicochemical factors. Microbial community compositions were determined by high-...

Abstract There is growing recognition of the potential environmental and socio-economic benefits applying a circular approach to urban organic waste management through resource recovery. Decisions around planning implementing systems require estimates quantity resources available in streams their market value. However, studies assessing economy have so-far been conducted mostly high-income coun...

Many municipalities have examined composting as an alternative to landfilling for the management of organic solid waste materials. Ultimately these materials will be land-applied and therefore some knowledge of nutrient availability will be necessary to optimize crop yield and minimize environmental risk. Field studies were conducted in 1993 and 1994 on a silt loam and a loamy sand soil in Wisc...