نتایج جستجو برای: extended aeration
تعداد نتایج: 224039 فیلتر نتایج به سال:
بازیافت پسابهای حاصله از فرآیندهای مختلف صنعتی توسط روشهای مختلف تصفیه و استفاده مجدد از آنها در فرآیندهای مذکور بخصوص در صنایعی نظیر صنایع نساجی که به آب فراوانی جهت تولید محصولات خود نیازمندند، موضوعی است که همواره مطمح نظر کارشناسان فن بوده است . رنگینه ها، یکی از عمده ترین آلاینده های پساب صنایع نساجی محسوب می گردد. کاهش و یا حذف کامل رنگ در تصفیه پسابهای نساجی هدف بارز و اصلی تصفیه اینگونه...
Advanced compact wastewater treatment processes are being looked for by cities all over the world as effluent standards are becoming more stringent and land available for treatment plants more scarce. In this investigation, a new biofilm process for this purpose was studied. The design and operational criteria of a full scale extended aeration activated sludge system was compared with an H-IFAS...
Background & Aims of the Study: The most important compounds in hospital wastewater are antibiotics, disinfectants, anesthetics, radioactive elements, static cytotoxic agents, other chemicals and hazardous materials that caused to be different domestic sewage. The purpose of this study was the evaluation of performance of extended aeration biological system in pollutants remova...
aeration of sulfide removal from biogas" (2013). Iowa State University Patents. Paper 28. Sung et al. (*) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 489 days.
This paper presents the results of 195 days of pilot-scale submerged membrane bioreactor (SMBR) experiments on settled municipal wastewater. Short-term and long-term thickening experiments were performed at a constant membrane flux of 30L/(m(2)h) to determine the impact of the following mixed liquor properties: colloidal material, soluble COD, soluble microbial products, extracellular polymeric...
A suspension of wastewater and treatment organisms in an aerated tank is known as the activated sludge process. The activated sludge process can be used for onsite wastewater treatment, generally requiring the addition of an air pump to deliver oxygen to the system and provide mixing energy. Suspended growth treatment systems can be secondary only (require supplemental primary treatment) or com...
A benchmark simulation model for membrane bioreactors (BSM-MBR) was developed to evaluate operational and control strategies in terms of effluent quality and operational costs. The configuration of the existing BSM1 for conventional wastewater treatment plants was adapted using reactor volumes, pumped sludge flows and membrane filtration for the water-sludge separation. The BSM1 performance cri...
The presence of humic substances (HS) in landfill leachate is of great interest because of their structural stability and potential toxicity. This study examined the effects of temperature and waste age on the transformation of HS during in situ aeration of bioreactor landfills. By establishing aerobic conditions, dissolved organic carbon (DOC) rapidly accumulated in the bioreactor leachate. Fr...
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