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Anaerobic Treatment of Wastewater in Colder Climates Using .

Nov 01, 2016 · The laboratory model treated wastewater at 15°C for over 850 days. The organic loading rate of the UASB reactor and AnMBR was 1.4 and 1.6 g COD/[L·d], respectively, while the hydraulic retention time was around 9 and 10 h. Energy recovery from the wastewater in gaseous methane was 4% and 6% in the UASB reactor and AnMBR, respectively.

Modelling Methane Production and Sulfate Reduction in .

Oct 12, 2016 · Anaerobic granular sludge reactors, many in the form of Upflow Anaerobic Sludge Blanket (UASB) reactors, are most widely used anaerobic biological reactors treating industrial wastewater high in .

What is a Biogas Reactor and Biogas Slowdown - The .

Jul 20, 2017 · A biogas reactor is an airtight chamber that facilitates the anaerobic degradation of blackwater, sludge, and/or biodegradable waste (e.g. animal manure, kitchen and garden wastes). It also facilitates the collection of the biogas, a mixture of methane (CH4) and carbon dioxide (CO2) produced in the fermentation processes in the reactor.

Modelling Methane Production and Sulfate Reduction in .

Oct 12, 2016 · Anaerobic granular sludge reactors, many in the form of Upflow Anaerobic Sludge Blanket (UASB) reactors, are most widely used anaerobic biological reactors treating industrial wastewater high in .

Waste Utilization and Management Laboratory

The Waste Utilization and Management Laboratory was established under a cooperative program between BIOTEC and King Mongkut's University of Technology Thonburi (KMUTT). It was originally set up in 1986 as a biogas research and development laboratory. The Laboratory has particularly strong expertise in wastewater treatment with over 20 years of research and application experience, with an .

International collaboration studies economics of turning .

Aug 23, 2018 · An anaerobic digester is a reactor in which organic material is broken down by bacteria and other microorganisms in the absence of oxygen. What remains after digestion is a mixture of gases ("biogas," which is largely methane and carbon dioxide), water and some organic material (digestate).

The Anaerobic Baffled Reactor

within the reactor independently of the wastewater flow. The reactor's high SRT keeps the HRT to a minimum which allows a higher volumetric load, significantly enhanced removal efficiencies (1, 2, 3, 15, and 17). II. Background and Theory One type of high-rate reactor is the anaerobic baffled reactor (ABR). Developed

Development of anaerobic high-rate reactors, focusing on .

In the last 40 years, anaerobic sludge bed reactor technology has evolved from localized laboratory-scale trials to worldwide successful implementations in a variety of industries. High-rate sludge bed reactors are characterized by a very small footprint and high applicable volumetric loading rates.

Bioreactor - Wikipedia

A bioreactor refers to any manufactured device or system that supports a biologically active environment. In one case, a bioreactor is a vessel in which a chemical process is carried out which involves organisms or biochemically active substances derived from such organisms. This process can either be aerobic or anaerobic.These bioreactors are commonly cylindrical, ranging in size from litres .

Environmental Protection Agency Wastewater Technology Fact .

anaerobic byproducts remaining. Anaerobic lagoons are not applicable to many situations because of large land requirements, sensitivity to environmental conditions, and objectionable odors. Furthermore, the anaerobic process may require long retention times, especially in cold climates, as anaerobic bacteria are uneffective below 15° C.

(PDF) Anaerobic hybrid reactor: A promising technology for .

Anaerobic treatability studies were conducted by a laboratory-scale hybrid upflow anaerobic reactor with an effective volume of 81. The reactor was operated more that 270 days under mesophilic .

Laboratory Studies on the Anaerobic Sequencing Batch .

Laboratory studies on the anaerobic sequencing batch reactor Shihwu Sung, Richard R. Dague ABSTRACT: The anaerobic sequencing batch reactor (ASBR) is a new high rate anaerobic process (U.S. Pat. No. 5,185,079) that has been under development by Dague and co-workers at Iowa State University. In the

Characteristics of Biohydrogen Production and Performance .

The biohydrogen production efficiency and performance of hydrogen-producing acetogen in a four-compartment anaerobic baffled reactor (ABR) were studied by gradually increasing the influent normal molasses wastewater (NMWW) proportion. When the influent NMWW proportion increased to 55%, ABR could develop microbial community with methanogenic function in 63 days and reach a stable operation.

Anaerobic Baffled Reactor: A promising wastewater .

reactor had a very little effect on the removal of pathogens (Feng et al., 2008). In another study, the low strength wastewater was treated in a lab scale eight chambered anaerobic baffled reactor. The reactor was started at an HRT of 20 hours and the COD removal efficiency was in the range of .

Anaerobic Fixed Film Reactor (AFFR) Wastewater Treatment .

Anaerobic Fixed Film Reactor (AFFR) Wastewater Treatment System On 4 March 2006, senior management of Chol Charoen Group, BIOTEC, and researchers from King Mongkut's University of Technology Thonburi (KMUTT) hosted the visit of H.E. Dr. Pravit Ratanapian, Minister of Science and Technology to the Chol Charoen Starch Mill in Chonburi Province.

Laboratory studies on the anaerobic sequencing batch reactor

The anaerobic sequencing batch reactor (ASBR) is a new high-rate anaerobic process (U.S. Patent No. 5,185,079) that has been developed at Iowa State University. The system offers attractive fundamental advantages over continuous-flow, suspended-growth anaerobic processes. As a result of batch feeding, it is possible to achieve low substrate concentrations just prior to the settling phase.

A Lab Bench Scale Anaerobic Digester - CEE Cornell

An anaerobic digester was set up in the lab to treat synthetic waste at a BOD concentration of 6500 mg/L and the system was automated using Process Controller software. Results showed that anaerobic digestion was indeed occurring in the system but suggested that many of the cells in the reactor .

Anaerobic Bioconversion of Carbon Dioxide to Biogas in an .

aerobic system with a lab-scale upflow anaerobic sludge blanket reactor at 35 °C was developed. In a series of experiments, the reactor was run with and without CO 2-saturated solutions including volatile fatty acids (VFAs) as sources of hydrogen. The concentration of dissolved CO 2 in the influent solutions was 2.2–6.1 g/L, with corre-

Biogas Emission from an Anaerobic Reactor

The UASB Reactor Set up and Operating Condition The inoculum of UASB reactor was anaerobic sludge obtained from the Wangtang municipal wastewater treatment plant in Anhui province, China. The configuration of UASB reactor was shown in Fig. 1, working volume was 4.5 L, the operating temperature maintained at 35 ± 2°C by a constant

BIOPAQ®IC - PAQUES

BIOPAQ®IC Decrease production costs and meet tighter discharge limits with a cost-effective anaerobic effluent treatment system. The BIOPAQ ® IC (internal Circulation) is a cost-effective anaerobic (=without air) effluent treatment system for industrial wastewater, which enables you to comply with effluent discharge limits and produce biogas at the same time.

Lab-scale study of an anaerobic membrane bioreactor (AnMBR .

Anaerobic bioreactors supplemented with membrane technology have become quite popular, owing to their favorable energy recovery characteristics. In this study, a lab-scale anaerobic Membrane Bioreactor (AnMBR) was assessed in experimental treatments of pre-settled dilute municipal wastewater obtained from a full-scaled wastewater treatment plant.

Anaerobic Ammonium Oxidation: From Laboratory to Full .

Among different reactors, the anammox nonwoven membrane reactor (ANMR) is a novel reactor configuration to enrich anammox biomass (Figure 5) [40, 41]. The reactor was developed by connecting a set of nonwoven membrane module, which also served as an effluent port, with an anaerobic reactor.

Lab-scale study of an anaerobic membrane bioreactor (AnMBR .

Anaerobic bioreactors supplemented with membrane technology have become quite popular, owing to their favorable energy recovery characteristics. In this study, a lab-scale anaerobic Membrane Bioreactor (AnMBR) was assessed in experimental treatments of pre-settled dilute municipal wastewater obtained from a full-scaled wastewater treatment plant.

Laboratory Studies on the Anaerobic Sequencing Batch .

Laboratory studies on the anaerobic sequencing batch reactor Shihwu Sung, Richard R. Dague ABSTRACT: The anaerobic sequencing batch reactor (ASBR) is a new high rate anaerobic process (U.S. Pat. No. 5,185,079) that has been under development by Dague and co-workers at Iowa State University. In the

Characteristics of Biohydrogen Production and Performance .

The biohydrogen production efficiency and performance of hydrogen-producing acetogen in a four-compartment anaerobic baffled reactor (ABR) were studied by gradually increasing the influent normal molasses wastewater (NMWW) proportion. When the influent NMWW proportion increased to 55%, ABR could develop microbial community with methanogenic function in 63 days and reach a stable operation.

Laboratory Anaerobic Digester, Lab Equipment, प्रयोगशाला .

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Influence of Environmental Conditions on Methanogenic .

The compositions of methanogenic communities present in anaerobic reactors have been studied mostly for laboratory-scale digesters, including up-flow anaerobic sludge blanket reactor granules and mixture reactors treating municipal solid waste (MSW) or wastewater sludge (18, 20).

Integration of Rotary Drum Reactor and Anaerobic Digestion .

Integration of Rotary Drum Reactor and Anaerobic Digestion Technologies for Treatment of Municipal Solid Waste. Produced Under Contract by: Ruihong Zhang Petros Gikas . Baoning Zhu . James Lord . Chris Choate . . Schematic of the APS-Digester used in the laboratory experiments. .

Laboratory and full-scale performances of integrated .

After seeding with the anaerobic seed sludge, the laboratory-scale GSB reactor was started up by feeding the wastewater at a nominal volumetric loading rate (VLR) of 1 g COD/L.d. The idea of starting up with low VLR, in this case 1 g COD/L.d (10% of the design loading), is to provide just the right amount of carbon source and nutrients for the .

Wastewater Technology Fact Sheet: Sequencing Batch Reactors

The sequencing batch reactor (SBR) is a fill-and-draw activated sludge system for wastewater treatment. In this system, wastewater is added to a single "batch" reactor, treated to remove undesirable components, and then discharged. Equali zation, aeration, and clarification can all be achieved using a single batch reactor. To optimize