the effect of poultry waste application on physicochemical and biological properties of sandy clay loam soil was investigated on a 7m x 7m plot of land. plot was divided into four portions and 7.5kg each of broiler, cockerel and layers waste was applied to plot a, b, and c in slurry form while plot d was used as control(no application) for eight weeks with two weeks interval. after the fourth a...

The mechanical-biological waste treatment plants (MBTP), which include the municipal biogas plants, have an important role in sustainable urban development. Some are equipped with a sewage pre-treatment plant, is then directed to sewerage system and plant. Others, on other hand, only non-drainage tank. parameters of technological (TS) or processing technology could reduce contamination rates. I...

aims: textile wastewaters are the most important health and environmental problems in kashan. this research was aimed to compare the poly aluminum chloride and chlorinated cuprous efficiency for removal of chemical oxygen demand (cod) and color from kashan textile industries company wastewater. materials & methods: this experimental bench scale study in a batch system was conducted on 20 compos...

abstract background: in 2007, a rule prohibiting the use of incinerators was ratified by the iranian islamic parliament. based on this rule, the ministry of health emphasized the sterilization of infectious waste at its production source by means of non-incineration equipment and methods. this research examined the performance of non-incineration technologies in treating medical infectious and ...

aims: regarding water as the main source of brio, not only its quantity and being availability is vital, but also its quality must be considered. this study was done in order to determine the correlation between physicochemical bod5 and microbiological parameters (fc and tc) in the kashan university of medical sciences wastewater effluent of activated sludge system.  materials & methods: this d...

Huge amounts of waste biosolids are produced from biological processes as waste water treatment, agriculture and food production. The volatile compounds could be utilised as a source for renewable energy in anaerobic processes. However, the anaerobic degradation is slow so that large fermenters are necessary. By ultrasonic disintegration the rate limiting hydrolysis of volatile solids is substi...