نتایج جستجو برای: راکتور uasb

تعداد نتایج: 2938  

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2013
Ke Li Feng Ji Yuanlu Liu Zilin Tong Xinmin Zhan Zhenhu Hu

High concentration animal wastewater is often contaminated by tetracycline and an upflow anaerobic sludge bioreactor (UASB) with granular sludge is often used to treat the wastewater. The investigation of the adsorption process of tetracycline on anaerobic granular sludge during anaerobic digestion of animal wastewater will increase the understanding of antibiotics behavior in the UASB reactor....

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2007
R Chamy C Pizarro E Vivanco M C Schiappacasse D Jeison P Poirrier G Ruiz-Filippi

One of the research areas is the agricultural use of treated wastewaters, because it represents a unique opportunity to solve the problem of water supply for irrigation and at the same time the disposal of treated water. Anaerobic digestion appears as an interesting alternative, since anaerobically treated wastewaters can be used for irrigation purposes. These considerations are applied to the ...

2015
Rosa-Elena Yaya-Beas Jules B. van Lier Grietje Zeeman

This research was conducted to study the anaerobic sludge filtration capacity regarding helminth egg removal in upflow anaerobic sludge blanket (UASB) reactors. Two 25 L lab-scale UASB reactors were operated at an ambient temperature which varied between 17.1 and 28.6 °C. Ascaris suum egg was selected as the model egg considering its similarity in terms of size and morphology to Ascaris lumbric...

Journal: :international journal of environmental research 2011
m. selvamurugan p. doraisamy m. maheswari n.b. nandakumar

in this paper, startup performance of upflow anaerobic hybrid reactor and upflow anaerobic sludge blanket reactors in anaerobic treatment of distillery spentwash has been studied under identical conditions of operation. various effluent characteristics like ph, electrical conductivity, chemical oxygen demand, biochemical oxygen demand and total solids and other process parameters like biogas p...

Journal: :international journal of environmental research 0
m. selvamurugan department of environmental sciences, tamil nadu agricultural university, coimbatore - 641 003, tamil nadu, india p. doraisamy department of environmental sciences, tamil nadu agricultural university, coimbatore - 641 003, tamil nadu, india m. maheswari department of environmental sciences, tamil nadu agricultural university, coimbatore - 641 003, tamil nadu, india n.b. nandakumar department of environmental sciences, tamil nadu agricultural university, coimbatore - 641 003, tamil nadu, india

in this paper, startup performance of upflow anaerobic hybrid reactor and upflow anaerobic sludge blanket reactors in anaerobic treatment of distillery spentwash has been studied under identical conditions of operation. various effluent characteristics like ph, electrical conductivity, chemical oxygen demand, biochemical oxygen demand and total solids and other process parameters like biogas pr...

Journal: :Applied and environmental microbiology 1993
J B Van Lier K C Grolle C T Frijters A J Stams G Lettinga

The effects of acetate, propionate, and butyrate on the anaerobic thermophilic conversion of propionate by methanogenic sludge and by enriched propionate-oxidizing bacteria in syntrophy with Methanobacterium thermoautotrophicum delta H were studied. The methanogenic sludge was cultivated in an upflow anaerobic sludge bed (UASB) reactor fed with propionate (35 mM) as the sole substrate for a per...

Journal: :international journal of environmental research 2012
l. guerrero m. vasquez a. barahona s. montalvo r. borja

the general objective of this study was to develop a highly efficient, economical andintegrated technology for the removal of nitrogen compounds through denitrification via nitrite. toachieve this, a modified uasb reactor was designed, set-up and operated using chilean zeolite asmicrobial support. the results were compared to a conventional uasb reactor used as control. thevolume of each reacto...

Journal: :Water 2022

Due to its high content of organics and nutrients, swine wastewater has become one the main environment pollution sources. Exploring high-efficient technologies for treatment is urgent becoming a hot topic in recent years. The present study introduces anaerobic membrane bioreactor (AnMBR) efficient wastewater, compared with up-flow sludge blanket (UASB) as traditional system. Pollutant removal ...

Journal: :Water research 2012
Wasala M K R T W Bandara Tomonori Kindaichi Hisashi Satoh Manabu Sasakawa Yoshihito Nakahara Masahiro Takahashi Satoshi Okabe

Anaerobic treatment is an attractive option for the biological treatment of municipal wastewater. In this study, municipal wastewater was anaerobically treated with a bench-scale upflow anaerobic sludge blanket (UASB) reactor at temperatures from 6 to 31 °C for 18 months to investigate total chemical oxygen demand (COD) removal efficiency, archaeal community structure, and dissolved methane (D-...

Journal: :Bioresource technology 2003
Fernanda L A Ferreira Jorge de Lucas Luiz A do Amaral

The stabilization of swine wastewaters from swine confined housing by the combination of a upflow anaerobic sludge blanket (UASB) reactor and waste stabilization ponds is a viable alternative to minimize the environmental impact caused by inadequate disposal of swine wastewaters. In the present study, the polluting load of pre-decanted swine wastewater treated with a series of two 0.705 m(3) UA...

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