scholarly journals An Integrated Process of Methanol Coagulation and Side Stream Membrane Bioreactor for Treatment of Rice Gruel Wastewater

2020 ◽  
Author(s):  
Shaik Nazia ◽  
Karishma Mishra ◽  
Veeriah Jegatheesan ◽  
Suresh K Bhargava ◽  
Sridhar Sundergopal
Keyword(s):  
Chemical Oxygen Demand ◽  
Room Temperature ◽  
Membrane Bioreactor ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Cost Effective ◽  
Total Dissolved Solids ◽  
Integrated Process ◽  
Aqueous Methanol ◽  
Side Stream

Abstract The demand for water supply is expected to be raised significantly in forthcoming decades. Production of reusable water from industrial and domestic wastewater is a feasible, cost effective and significant positive benefit to the environment. In the present study, the domestic rice gruel wastewater (RGW) was treated with aqueous methanol coagulation integrated aerobic membrane bioreactor (AMBR). Initially, the RGW which is at room temperature was treated with spiral wound hydrophilized - ultrafiltration (HF – UF) 5 kDa membrane module to determine the removal efficiency. Furthermore, the RGW was pre-treated with various coagulants such as methanol, ethanol and HCl. The obtained pre-treated RGW was subjected to the HF – UF 5 kDa side stream AMBR for production of reusable water. The experiments were conducted to determine the turbidity, conductivity, total dissolved solids (TDS) and chemical oxygen demand (COD) were found to be 96 %, 91 %, 91 % and 94.6 %. The overall process was feasible, compact, environmental free, cost effective, eco-friendly.

scholarly journals An integrated process of methanol coagulation and side stream membrane bioreactor for treatment of rice gruel wastewater

2020 ◽  
Author(s):  
Shaik Nazia ◽  
Karishma Mishra ◽  
Veeriah Jegatheesan ◽  
Suresh K Bhargava ◽  
Sridhar Sundergopal
Keyword(s):  
Membrane Bioreactor ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Cost Effective ◽  
Total Dissolved Solids ◽  
Water Production ◽  
Integrated Process ◽  
Aqueous Methanol ◽  
Side Stream ◽  
Effective Removal

Abstract Significant demand for water supply was to expect forthcoming decades. Production of reusable water from industrial and domestic wastewater is a feasible, cost-effective, and significant positive benefit to the environment. In the present study, the domestic rice gruel wastewater (RGW) treated with aqueous methanol coagulation integrated aerobic membrane bioreactor (AMBR). Hydrophilized spiral wound 5 kDa ultrafiltration membrane (HF – UF) used in the bioreactor for the effective removal of pollutants from RGW. Furthermore, the RGW pretreated with various coagulants such as methanol, ethanol, and HCl. The obtained pretreated RGW subjected to the HF-UF 5 kDa side stream AMBR for reusable water production. The experiments conducted to determine the turbidity, conductivity, total dissolved solids (TDS), and chemical oxygen demand (COD) found to be 96 %, 91 %, 91 %, and 94.6 %. The overall process was feasible, compact, environmentally free, cost-effective, eco-friendly.

An integrated process of methanol coagulation and side-stream membrane bioreactor for the treatment of rice gruel wastewater 

2020 ◽  
Author(s):  
Shaik Nazia ◽  
Karishma Mishra ◽  
Veeriah Jegatheesan ◽  
Suresh K Bhargava ◽  
Sridhar Sundergopal
Keyword(s):  
Membrane Bioreactor ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Cost Effective ◽  
Total Dissolved Solids ◽  
Water Production ◽  
Integrated Process ◽  
Aqueous Methanol ◽  
Side Stream ◽  
Effective Removal

Abstract Significant demand for water supply was to expect forthcoming decades. Production of reusable water from industrial and domestic wastewater is a feasible, cost-effective, and significant positive benefit to the environment. In the present study, the domestic rice gruel wastewater (RGW) treated with aqueous methanol coagulation integrated aerobic membrane bioreactor (AMBR). Hydrophilized (HF) spiral wound 5 kDa ultrafiltration (UF) membrane used in the bioreactor for the effective removal of pollutants from RGW. Furthermore, the RGW pretreated with various coagulants such as methanol, ethanol, and HCl. The obtained pretreated RGW subjected to the HF-UF 5 kDa side stream AMBR for reusable water production. The experiments conducted to determine the turbidity, conductivity, total dissolved solids (TDS), and chemical oxygen demand (COD) found to be 96%, 91%, 91%, and 94.6%. The overall process was feasible, compact, environmentally free, cost-effective, eco-friendly.

scholarly journals An integrated process of methanol coagulation and side-stream membrane bioreactor for the treatment of rice gruel wastewater

2021 ◽  
Author(s):  
Shaik Nazia ◽  
Karishma Mishra ◽  
Veeriah Jegatheesan ◽  
Suresh K Bhargava ◽  
Sridhar Sundergopal
Keyword(s):  
Membrane Bioreactor ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Cost Effective ◽  
Process Efficiency ◽  
Separation Performance ◽  
Integrated Process ◽  
Efficient Treatment ◽  
Environmentally Safe ◽  
Small Footprint

Abstract The demand for water supply is increasing rapidly across the world due to the exponential growth of population, swift urbanization, and industrialization. Methods for recovery of reusable water from domestic, industrial and agricultural wastewater should be cost-effective, and environmentally safe for the sustainability of water resources. Domestic wastewater is one of the contaminated water sources which need efficient treatment before discharge into water bodies. The novelty of the present study is to treat domestic rice gruel wastewater by coagulation integrated aerobic membrane bioreactor (AMBR) for the generation of reusable water. A hydrophilized ultrafiltration (HF-UF) spiral wound membrane of 5 kDa molecular weight cut off was used for the treatment of rice gruel wastewater at a feed temperature of 30 °C and 80 °C to study separation performance. Further, a comparison study was carried using various coagulants such as methanol, ethanol, and HCl for integration with HF-UF membrane to determine overall process efficiency at 30 °C. Methanol coagulation + HF-UF membrane based integrated process was able to achieve 93.77%, 95.4%, 91%, and 78.6 %, respectively of total dissolved solids (TDS), turbidity, conductivity, and chemical oxygen demand (COD). Further, this process was integrated with a bioreactor operated under aerobic conditions to improve the process efficiency and purified water quality. From the overall experimental results, the integrated coagulation + AMBR process attained a maximum removal of 93.9, 96, 91, and 94.6 percent of TDS, turbidity, conductivity and COD, correspondingly. Finally, an economic estimation of a 1000 Lh-1 capacity pilot plant is described in detail. The study depicts unique advantages of economy, process safety, small footprint, and eco-friendly for rice gruel wastewater by a combination of chemical coagulation with AMBR.

scholarly journals Membrane Fouling Characteristics of a Side-Stream Tubular Anaerobic Membrane Bioreactor (AnMBR) Treating Domestic Wastewater

Processes ◽  
2018 ◽  
Vol 6 (5) ◽  
pp. 50 ◽  
Author(s):  
Nsanzumukiza Martin Vincent ◽  
Juan Tong ◽  
Dawei Yu ◽  
Junya Zhang ◽  
Yuansong Wei
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Domestic Wastewater ◽  
Anaerobic Membrane Bioreactor ◽  
Side Stream ◽  
Fouling Characteristics

scholarly journals Effect of applied voltage on membrane fouling in the amplifying anaerobic electrochemical membrane bioreactor for long-term operation

RSC Advances ◽  
2021 ◽  
Vol 11 (50) ◽  
pp. 31364-31372
Author(s):  
Mengjing Cao ◽  
Yongxiang Zhang ◽  
Yan Zhang
Keyword(s):  
Chemical Oxygen Demand ◽  
Applied Voltage ◽  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Glucose Solution ◽  
Oxygen Demand ◽  
Term Operation ◽  
Long Time

A novel and amplifying anaerobic electrochemical membrane bioreactor was constructed and operated for a long time (204 days) with synthetic glucose solution having an average chemical oxygen demand (COD) of 315 mg L−1, at different applied voltages and room temperatures.

scholarly journals Assessment of the Water Quality Characteristics of Kaduna River Receiving Wastewater Discharges

2019 ◽  
Vol 3 (1) ◽  
pp. 56-61
Author(s):  
H. Garba ◽  
C. A. Elanu
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Chemical Oxygen Demand ◽  
Biochemical Oxygen Demand ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Quality Characteristics ◽  
Chemical Characteristics ◽  
Mean Concentration ◽  
Concentration Levels

An assessment of the chemical characteristics of industrial and domestic wastewater discharges on seven parameters into Kaduna River on a bimonthly basis was carried out. PH, dissolved oxygen (DO), chloride, nitrite, chemical oxygen demand (COD), biochemical oxygen demand (BOD) and iron were analyzed to determine their concentration levels. From the analysis, the highest mean concentration of the parameters were 8.24 of pH, 7.7 mg/l of DO, 233.4 mg/l of chloride, 55.68 mg/l of COD, 27.95 mg/l of nitrite, 122.22 mg/l of BOD, and 17.05 mg/l of iron. After comparing with prescribed standards, it can be concluded that there is evidence of organic and inorganic accumulation of contaminants into River Kaduna.

Treatment of slaughterhouse plant wastewater by using a membrane bioreactor

2011 ◽  
Vol 64 (1) ◽  
pp. 214-219 ◽  
Author(s):  
Levent Gürel ◽  
Hanife Büyükgüngör
Keyword(s):  
Organic Carbon ◽  
Chemical Oxygen Demand ◽  
Membrane Bioreactor ◽  
Nitrate Nitrogen ◽  
Oxygen Demand ◽  
Organic Substances ◽  
Slaughterhouse Wastewater ◽  
Treated Effluent ◽  
Nitrogen Concentrations ◽  
Removal Efficiencies

The use of a membrane bioreactor (MBR) for removal of organic substances and nutrients from slaughterhouse plant wastewater was investigated. The chemical oxygen demand (COD), total nitrogen (TN), and total phosphorus (TP) concentrations of slaughterhouse wastewater were found to be approximately 571 mg O2/L, 102.5 mg/L, and 16.25 mg PO4-P/L, respectively. A submerged type membrane was used in the bioreactor. The removal efficiencies for COD, total organic carbon (TOC), TP and TN were found to be 97, 96, 65, 44% respectively. The COD value of wastewater was decreased to 16 mg/L (COD discharge standard for slaughterhouse plant wastewaters is 160 mg/L). TOC was decreased to 9 mg/L (TOC discharge standard for slaughterhouse plant wastewaters is 20 mg/L). Ammonium, and nitrate nitrogen concentrations of treated effluent were 0.100 mg NH4-N/L, and 80.521 mg NO3-N/L, respectively. Slaughterhouse wastewater was successfully treated with the MBR process.

Mathematical modeling of upflow anaerobic sludge blanket (UASB) reactor treating domestic wastewater

2013 ◽  
Vol 67 (1) ◽  
pp. 24-32 ◽  
Author(s):  
Tarek Elmitwalli
Keyword(s):  
Chemical Oxygen Demand ◽  
Dynamic Model ◽  
Empirical Model ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Upflow Anaerobic Sludge Blanket ◽  
Uasb Reactor ◽  
Anaerobic Sludge ◽  
Model Based ◽  
Anaerobic Sludge Blanket

Although the upflow anaerobic sludge blanket (UASB) reactor has been widely applied for domestic wastewater treatment in many developing countries, there is no sufficient mathematical model for proper design and operation of the reactor. An empirical model based on non-linear regression was developed to represent the physical and chemical removal of suspended solids (SS) in the reactor. Moreover, a simplified dynamic model based on ADM1 and the empirical model for SS removal was developed for anaerobic digestion of the entrapped SS and dissolved matter in the wastewater. The empirical model showed that effluent suspended chemical oxygen demand (CODss) concentration is directly proportional to the influent CODss concentration and inversely proportional to both the hydraulic retention time (HRT) of the reactor and wastewater temperature. For obtaining sufficient CODss removal, the HRT of the UASB reactor must be higher than 4 h, and higher HRT than 12 h slightly improved CODss removal. The dynamic model results showed that the required time for filling the reactor with sludge mainly depends on influent total chemical oxygen demand (CODt) concentration and HRT. The influent CODt concentration, HRT and temperature play a crucial role on the performance of the reactor. The results indicated that shorter HRT is needed for optimization of CODt removal, as compared with optimization of CODt conversion to methane. Based on the model results, the design HRT of the UASB reactor should be selected based on the optimization of wastewater conversion and minimization of biodegradable SS accumulation in the sludge bed, not only based on COD removal, to guarantee a stable reactor performance.

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