نتایج جستجو برای: activated sludge system

تعداد نتایج: 2429306  

Journal: :Bioresource technology 2013
Michelle N Young Andrew K Marcus Bruce E Rittmann

The Combined Activated Sludge-Anaerobic Digestion Model (CASADM) quantifies the effects of recycling anaerobic-digester (AD) sludge on the performance of a hybrid activated sludge (AS)-AD system. The model includes nitrification, denitrification, hydrolysis, fermentation, methanogenesis, and production/utilization of soluble microbial products and extracellular polymeric substances (EPS). A CAS...

ژورنال: :شیمی کاربردی 0

activated sludge is an aerobic biological wastewater treatment process. this process has been efficiently and extensively used for the treatment of industrial and municipal wastewaters since about 100 years ago. some drugs such as antibiotics have adverse effects on the bacteria in activated sludge. cefixime trihydrate is a semi-synthetic antibiotic belonging to the third generation of cephalos...

Journal: :iranian journal of public health 0
mahad s. baawain mohsin al-jabri b.s. choudri

background: domestic and industrial wastewaters are mostly treated by biological process such as activated sludge, aerobic pond, and anaerobic treatment. this study focuses on characterizing the quality of sewage sludge in the sultanate of oman chosen from three industrial sewage treatment plants (stps): rusayl industrial estate (rsl.ie); sohar industrial estate (sie); and raysut industrial est...

Alireza Nasiri, Fatemeh Khademi, Kamyar Yaghmaeian, Mohammad Ali Hayatabadi, Mohammad Malakootian, Mohammad Taheri,

Background: In this study, the effect of wastewater produced by pistachio processing in processing terminals on wastewater treatment plants with activated sludge process was investigated. Methods: The pilot of activated sludge was constructed at the laboratory scale similar to wastewater treatment plant in Kerman and it was investigated in different ratios of the wastewater of pistachio proces...

F. Golbabaei Kootenaei H. Aminirad Khalil Pourshamsian, M. Fallahnejad M. Ramezani S. Ahmadi

Hospital wastewater has special importance since having pathogens, radioactive materials, pharmaceutical wastes and heavy metals. Removing them into environment without any treatment may cause serious problems for the public health. Membrane Biological Reactor is the combination of the activated sludge and membrane filters. This research has investigated the performance of the Nano-Filtration i...

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2014
Paula Reyes Alejandra Urtubia María C Schiappacasse Rolando Chamy Silvio Montalvo Rafael Borja

The macromolecular composition of activated sludge (lipids, intracellular proteins and intracellular polysaccharides) was studied together with its capacity to store macromolecules such as polyhydroxybutyrate (PHB) in a conventional activated sludge system fed with synthetic sewage water at an organic load rate of 1.0 kg COD/(m(3)·d), varying the dissolved oxygen (DO) and temperature. Six DO co...

Journal: :international archives of health sciences 0
ali atamaleki public health school, kashan university of medical sciences gholamreza mostafaii public health school, kashan university of medical sciences mohamadbagher miranzadeh public health school, kashan university of medical sciences leila iranshahi public health school, kashan university of medical sciences hosein akbari public health school, kashan university of medical sciences hamid safari public health school, kashan university of medical sciences

aims: intensification of current environmental legislation leads to an increase wastewater treatment sludge volume. so reducing the sludge volume is considered as a strategy to improve and solve the problems of secondary pollution of sludge. dissolved air flotation (daf) as a substitute clarifier is used for separation of activated sludge liquid-solid phases. the aim of this study was to estima...

Journal: :شیمی کاربردی 0

activated sludge is an aerobic biological wastewater treatment process. this process has been efficiently and extensively used for the treatment of industrial and municipal wastewaters since about 100 years ago. some drugs such as antibiotics have adverse effects on the bacteria in activated sludge. cefixime trihydrate is a semi-synthetic antibiotic belonging to the third generation of cephalos...

Journal: :Journal of environmental sciences 2007
Fa-gen Zhang Jun-xin Liu Jun Sui

UNITANK is a biological wastewater treatment process that combines the advantages of traditional activated sludge process and sequencing batch reactor, which is divided into Tank A, B and C. In this study, the sludge distribution and its impact on performance of UNITANK were carried out in Liede Wastewater Plant (WWTP) of Guangzhou, China. Results showed that there was a strong affiliation betw...

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