نتایج جستجو برای: anaerobic digestion chemical oxygen demand cod
تعداد نتایج: 769401 فیلتر نتایج به سال:
Pretreatment with the addition of metals to anaerobic digestion in biogas production is crucial address improper degradation organic compounds low methane production. Biogas from a combination cassava pulp and wastewater batch system under variation alkaline heat conditions as pretreatment was investigated zero-valent iron (ZVI) after pretreatment. It found that at pH 10 100 °C for 30 min combi...
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...
Background and Objective: Hydrolysis of fat, oil and grease by ultrasonic waves is a pre-treatment method before anaerobic digestion which can change their physical, chemical and biological properties. The main purpose of this study was to investigate the efficiency of ultrasonic waves to improve the hydrolysis process and its use as an auxiliary substrate to increase the efficiency of anaerobi...
BACKGROUND Anaerobic treatment methods are more suitable for the treatment of concentrated wastewater streams, offer lower operating costs, the production of usable biogas product. The aim of this study was to investigate the performance of an Anaerobic Fluidized Bed Reactor (AFBR)-Aerobic Moving Bed Bio Reactor (MBBR) in series arrangement to treat Currant wastewater. METHODS The bed materia...
Abstract This study investigates the utilization of petrochemical and domestic wastewater (PCW DW) for dual biogas biochar production, focusing on economic sustainable development criteria. Biogas yield by anaerobic co-digestion a 0:1 (PCW:DW) feed was 306.4±11.8 mL per g chemical oxygen demand (COD) removed, which dropped 12.7% with changing PCW:DW to 1:0. The results indicated that increasing...
Background: Yazd waste stabilization pond facilities consist of three stabilization pond systems, module 1, module 2 and module 3 that AWSP module 1 has started its operation. The existing facilities have had several problems in their operation. The objectives of this research were to evaluate the performance of stabilization ponds in wastewater treatment of the city of Yazd, due to several pro...
High utilization of palm oil in Indonesia corresponds to mill effluent (POME). The POME has chemical oxygen demand (COD) up 100.000 mg/L, which can pollute the ecosystem if not adequately treated. One methods manage is anaerobic thermophilic digestion. advantage this method production methane gas a form alternative energy. Substrate concentration affects This preliminary experiment aims evaluat...
The wastewater generated from the pharmaceutical industry contain high organic load and the treatment are primarily carried out using two major types of biological methods; aerobic and anaerobic. However, due to high strength, it is infeasible to treat some pharmaceutical wastewater using aerobic biological processes. As an alternative, an anaerobic process is preferred to remove high strength ...
The electrochemical oxidation of the digested effluent from anaerobic digestion of dairy manure was investigated in this study. The digested effluent sample containing with suspended solids was pretreated by filtration for the electrochemical experiment. The influence of direct anodic oxidation and indirect oxidation was evaluated through the use of dimensionally stable anode (DSA) and Ti/PbO2 ...
A study of the second step or methanogenic stage of a two-stage anaerobic digestion process treating two-phase olive oil mill solid residue (OMSR) was conducted at mesophilic temperature (35 degrees C). The substrate fed to the methanogenic step was the effluent from a hydrolytic-acidogenic reactor operating at an organic loading rate (OLR) of 12.9 g chemical oxygen demand (COD) L(-1) d(-1) and...
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