نتایج جستجو برای: waste activated sludge
تعداد نتایج: 311297 فیلتر نتایج به سال:
Background and aimsDespite increasing concerns about hospital waste management, scantattention has been paid to hospitals and medical research laboratories. These effluents containpathogenic microorganisms, incomplete metabolized Pharmaceutical, radioactive elements andother toxic chemicals. The purpose of present work is evaluation of hospitals wastewater treatmentplants performance of Iran Un...
Abstract Background Most of the organic content waste activated sludge (WAS) comprises microbial cells hard to degrade, which must be pre-treated for energy recovery by anaerobic digestion (AD). Electrooxidation pre-treatment (EOP) with boron-doped diamond (BDD) electrode have been considered a promising novel technology that increase hydrolysis rate, disintegrating cell walls from WAS. Althoug...
Background and purpose: In activated sludge process large amounts of sludge are produced. The disposal and management of this sludge remains a big challenge due to environmental, economic, social and legal factors. Thus, selecting an appropriate process that could reduce sludge would be of great help in solving this problem. The aim of present research was to determine the effects of three pr...
Municipal and industrial wastewater treatment plants produce large amounts of sludge. This excess sludge is an inevitable drawback inherent to the waste activated sludge process. Both the reduction of the amount of sludge produced and improving its dewaterability are of paramount importance. Novel pre-treatment processes have been developed in order to improve sludge dewatering, handling and di...
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