Combined micro-electrochemical and biological process for treatment of 3,3?-dichlorobenzidine (DCB) industrial wastewater

2004 ◽  
Author(s):  
X SHIBIN
Keyword(s):  
Industrial Wastewater ◽  
Biological Process

scholarly journals Treatment of pesticide intermediate industrial wastewater using hybrid methodologies

2021 ◽  
Vol 11 (3) ◽  
Author(s):  
Sindhu Akinapally ◽  
Bhagawan Dheeravath ◽  
Kiran Kumar Panga ◽  
Himabindu Vurimindi ◽  
Srinivasulu Sanaga
Keyword(s):  
Water Pollution ◽  
Industrial Waste ◽  
Industrial Wastewater ◽  
Biological Treatment ◽  
Biological Process ◽  
Human Beings ◽  
Industrial Waste Water ◽  
Process Methodology ◽  
Electro Oxidation ◽  
Percentage Removal

AbstractAbatement of water pollution is being a major concern to be dealt with, as the scarcity of water for basic needs of human beings is increasing drastically. As a part of diminishing water pollution, treatment of industrial wastewater prior to disposal plays a paramount role. Due to the typical characteristics of pesticide, intermediate industrial waste water the treatment is also challenging issue. In this study three different sequential methodologies (Methodology-I: combined rotavapour distillation, fenton and anaerobic biological process, Methodology-II: combined rotavapour distillation, photo fenton and anaerobic biological process, Methodology-III combined coagulation, fenton, electro oxidation and anaerobic biological process) has been evaluated for the treatment of pesticide intermediate industrial wastewater. Among the three sequential methodologies opted in this study for the treatment of pesticide intermediate industrial wastewater, percentage removal of COD was 95% in methodology-1 (i.e. combined rotavapor distillation, fenton and anaerobic biological treatment).

Industrial wastewater platform: upgrading of the biological process and operative configurations for best performance

2012 ◽  
Vol 65 (4) ◽  
pp. 721-727 ◽  
Author(s):  
Anna Laura Eusebi ◽  
Alessandro Massi ◽  
Emiliano Sablone ◽  
Martina Santinelli ◽  
Paolo Battistoni
Keyword(s):  
Industrial Wastewater ◽  
Biological Process ◽  
Carbon Sources ◽  
Average Concentration ◽  
Adsorption Phenomenon ◽  
Biological Unit ◽  
Physical Chemical ◽  
Liquid Wastes ◽  
Operative Costs ◽  
Micro Pollutants

The treatment of industrial liquid wastes is placed in a wide context of technologies and is related to the high variability of the influent physical–chemical characteristics. In this condition, the achievement of satisfactory biological unit efficiency could be complicated. An alternate process (AC) with aerobic and anoxic phases fed in a continuous way was evaluated as an operative solution to optimize the performance of the biological reactor in a platform for the treatment of industrial liquid wastes. The process application has determined a stable quality effluent with an average concentration of 25 mg TN L−1, according to the law limits. The use of discharged wastewaters as rapid carbon sources to support the anoxic phase of the alternate cycle, realizes a reduction of TN of 95% without impact on the total operative costs. The evaluation of the micro-pollutants behaviour has highlighted a bio-adsorption phenomenon in the first reactor. The implementation of the process defined 31% of energy saving during period 1 and 19% for the periods 2, 3 and 4.

Pengolahan Air Limbah Laboratorium Menggunakan Metode AOPs (ADVANCED OXIDATION PROCESSES) Dengan Pereaksi Fenton (H2O2 dan FeSO4) Pada Skala Batch

2018 ◽  
Author(s):  
Gede H Cahyana
Keyword(s):  
Industrial Wastewater ◽  
Advanced Oxidation Processes ◽  
Biological Process ◽  
Oxygen Demand ◽  
Advanced Oxidation ◽  
Optimum Dose ◽  
Fenton Reagent ◽  
Oxidation Processes ◽  
Low Concentrations ◽  
Reduction Efficiency

Laboratory wastewater was derived from analytical activities in the laboratory and grouped to hazardous waste. It was different from hazardous industrial wastewater because of many different pollutants. The composition of its dangerous substances was not easy to be processed by biological process. Therefore, chemical method was tried, namely Advanced Oxidation Processes (AOPs). The optimum dose of Fenton (H2O2 and FeSO4) reagent was the purpose to reduce the concentration of Chemical Oxygen Demand (COD). Variations applied were COD concentrations, which were 10,090,09 mg / L, 5.009,01 mg / L and 511,71 mg / L with varied reagen. The optimum dose of Fenton reagent was obtained 1: 300 with COD reduction efficiency as follows: COD concentration 10,090,09 mg / L = 21,43%, COD concentration 5.009,01 mg / L = 46,76% and concentration of COD 511,71 mg / L = 83,10%. The results suggested that Fenton could to reduce COD concentration up to 80% in relatively low concentrations. Keywords: laboratory wastewater, Fenton, COD, batch

Intensive Biological Process Based on SBR Reactor for Industrial Wastewater Treatment

2008 ◽  
Vol 59 (10) ◽  
Author(s):  
Margareta Nicolau ◽  
Viorel Patroescu ◽  
Cristiana Cosma ◽  
Laurentiu Dinu ◽  
Costel Bumbac ◽  
...  
Keyword(s):  
Industrial Wastewater ◽  
Sequencing Batch Reactor ◽  
Biological Process ◽  
Batch Reactor ◽  
Organic Load ◽  
Effluent Quality ◽  
Biological Sludge ◽  
Sludge Stabilization ◽  
Acclimation Period ◽  
Bod Removal

A two-stage aerobic Sequencing Batch Reactor system (SBR) designed and constructed by INCD-ECOIND�s specialists was used for treatment of the wastewater discharged from drugs fabrication (conditioning operations), with variable concentrations of organic load: COD = 1200-3300 mg O2/L, BOD5 = 490-1570 mg O2/L. After acclimation period, the 1st stage and 2nd stage SBRs were able to achieve COD and BOD removal, with global efficiencies ranging from 63-97% and 82-99% respectively (HRT = 9 h). The effluent quality is in compliance with the discharge standards (GD352/05 - NTPA002). The paper also presents laboratory-scale experimentation carried out for the processing of excess biological sludge (stabilization/conditioning, leaching tests) in order to find out its subsequent destination.

RESEARCH AND EVALUATE TREATMENT EFFICIENCY ON TAPIOCA PROCESSING INDUSTRIAL WASTEWATER BY AEROBIC BIOFILTER TECHNOLOGY WITH VARIOUS MATERIALS

2010 ◽  
Vol 13 (3) ◽  
pp. 54-66
Author(s):  
Phuong Thi Thanh Nguyen ◽  
Phuoc Van Nguyen ◽  
Anh Cam Thieu
Keyword(s):  
Wastewater Treatment ◽  
Industrial Wastewater ◽  
Utilization Rate ◽  
Organic Loading ◽  
Treatment Efficiency ◽  
Research Results ◽  
Loading Rates

This study was performed to evaluate the efficiency of tapioca processing wastewater treatment using aerobic biofilter with variety of biofilter media: coir, coal, PVC plastic and Bio - Ball BB15 plastic. Research results in the lab demonstrated all four aerobic biofilter models processed can treated completely N and COD which COD reached 90-98% and N reached 61-92%, respectively, at the organic loading rates in range of 0.5, 1, 1.5 and 2 kgCOD/m3.day. The results identified coir filter was the best in four researched materials with removal COD and specific substract utilization rate can reach 98%, and 0.6 kg COD/kgVSS.day. Research results open the new prospects for the application of the cheap materials, available for wastewater treatment.

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