Design of Photovoltaic Enterprise Wastewater Treatment Engineering

2012 ◽  
Vol 610-613 ◽  
pp. 1658-1661
Author(s):  
Yong Bin Zhao ◽  
Hong Ping Chen ◽  
Tuo Yang
Keyword(s):  
Water Quality ◽  
Domestic Wastewater ◽  
First Grade ◽  
Shanxi Province ◽  
Operational Cost ◽  
Effluent Water ◽  
Treatment Efficiency ◽  
Emission Standard ◽  
Contact Oxidation ◽  
Biological Contact Oxidation

The photovoltaic enterprise in Shanxi Province uses the process of biological contact oxidation-coagulation sedimentation to treat enterprise production wastewater and domestic wastewater. By commissioning and operating, the process is characterized by feasible process and easy management, low operational cost and stable treatment efficiency. The effluent water quality can meet the first grade of “Integrated Sewage Emission Standard” (GB 8978-1996).

Engineering Example of High Concentration Printing and Dyeing Wastewater Processed by UBF Craft

2011 ◽  
Vol 255-260 ◽  
pp. 2736-2739
Author(s):  
Shi Yuan Huang ◽  
Qiang Huang ◽  
Sheng Bing Chen ◽  
Yuan Yuan Gao
Keyword(s):  
Toxic Substances ◽  
Wastewater Discharge ◽  
Effluent Water ◽  
Dyeing Wastewater ◽  
High Concentration ◽  
Printing And Dyeing Wastewater ◽  
Contact Oxidation ◽  
Grade One ◽  
Biological Contact Oxidation ◽  
Large Flow

The multi-methods of UBF-biological contact oxidation - enhanced coagulation- precipitation - fiber sand filtration has been applied to treatment a dyeing and printing wastewater, because it is with the characteristics of large flow, high CODcr, high chromaticity and toxic substances. The result showed: when the feed wate under the conditions of CODcr, BOD5, SS quality concentrations were 15000mg / L, 250mg / L,> 800mg / L and chromaticity blow 1000 times, effluent water quality can meet grade one of the national integrated wastewater discharge standards (GB8978-1996).

Design of Experiment Equipment for Treating Low Temperature Domestic Sewage Using Biological Contact Oxidation Process

2011 ◽  
Vol 71-78 ◽  
pp. 4765-4769
Author(s):  
Ying Li ◽  
Jing Zhou
Keyword(s):  
Low Temperature ◽  
High Latitude ◽  
Oxidation Process ◽  
Sewage Treatment ◽  
Domestic Wastewater ◽  
Domestic Sewage ◽  
Oxidation Method ◽  
Treatment Processes ◽  
Contact Oxidation ◽  
Biological Contact Oxidation

According to the biodegradability of wastewater and better adaptability of biological treatment processes, and advantages of using biological contact oxidation process to treat sewage, biological contact oxidation method was used to study the removal conditions of domestic sewage treatment in high latitude area, and a set of experimental device of biological contact oxidation method applied in treating domestic sewage in low temperature was designed, to solve the serious pollution of domestic wastewater and its higher treatment cost in high latitude area.

Influence of High-Salinity Impact Load on an Integrated Sync Contact Oxidation Process

2014 ◽  
Vol 926-930 ◽  
pp. 396-399
Author(s):  
Peng Fei Yu ◽  
Ya Ting He ◽  
Jin Xiang Fu
Keyword(s):  
Hydraulic Retention Time ◽  
High Salinity ◽  
Oxidation Process ◽  
Impact Load ◽  
Effluent Water ◽  
Sludge Treatment ◽  
Salinity Shock ◽  
Contact Oxidation ◽  
Total Nitrogen Removal ◽  
Biological Contact Oxidation

To solve the problem of high-salt ballast wastewater treatment, biological contact oxidation process by combined packing used to simulate the experimental study. When dissolved oxygen is 5 to 6, water temperature is 18 ~ 20 °C, pH is 7~8 and hydraulic retention time is 48h, the Influence of salinity dips and swells process on sludge treatment system and its effects were investigated. The results showed that salinity shock loads on the system less affected COD removal, after 3-5 days short adaptability run, the system became able to restore effluent water stability. The influence of Salinity swells process on AOB, NOB and denitrifying bacteria was greater than a dip .Salinity plunged produced smaller impact on the total nitrogen removal, while in the salinity swells TN removal reduced from 70.7% to 42%.

Predictive performance modeling of Habesha brewery wastewater treatment plant using artificial neural networks

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Neural Networks ◽  
Water Quality ◽  
Wastewater Treatment ◽  
Artificial Neural Networks ◽  
Performance Modeling ◽  
Predictive Performance ◽  
Mathematical Tool ◽  
Effluent Water ◽  
Artificial Neural

Recently, process control in wastewater treatment plants (WWTPs) is, mostly accomplished through examining the quality of the water effluent and adjusting the processes through the operator’s experience. This practice is inefficient, costly and slow in control response. A better control of WTPs can be achieved by developing a robust mathematical tool for performance prediction. Due to their high accuracy and quite promising application in the field of engineering, Artificial Neural Networks (ANNs) are attracting attention in the domain of WWTP predictive performance modeling. This work focuses on applying ANN with a feed-forward, back propagation learning paradigm to predict the effluent water quality of the Habesha brewery WTP. Data of influent and effluent water quality covering approximately an 11-month period (May 2016 to March 2017) were used to develop, calibrate and validate the models. The study proves that ANN can predict the effluent water quality parameters with a correlation coefficient (R) between the observed and predicted output values reaching up to 0.969. Model architecture of 3-21-3 for pH and TN, and 1-76-1 for COD were selected as optimum topologies for predicting the Habesha Brewery WTP performance. The linear correlation between predicted and target outputs for the optimal model architectures described above were 0.9201 and 0.9692, respectively.

Application of basalt fibers in a biological contact oxidation reactor for the treatment of landfill leachate

2021 ◽  
Vol 297 ◽  
pp. 126648
Author(s):  
Huicheng Ni ◽  
Muhammad Arslan ◽  
Junchao Qian ◽  
Yaping Wang ◽  
Zhigang Liu ◽  
...  
Keyword(s):  
Landfill Leachate ◽  
Basalt Fibers ◽  
Contact Oxidation ◽  
Oxidation Reactor ◽  
Biological Contact Oxidation

Experiment of Polyester Wastewater Treatment by Aerobic Membrane Bioreactor and an Engineering Application

2012 ◽  
Vol 518-523 ◽  
pp. 2130-2137
Author(s):  
Si Hao Lv ◽  
Hui Chang ◽  
Zhi Hui Liang ◽  
Yan Yan Zeng ◽  
Hong Bo Fan
Keyword(s):  
Water Quality ◽  
Pilot Study ◽  
Membrane Bioreactor ◽  
Suspended Solids ◽  
Loading Rate ◽  
Engineering Application ◽  
Full Scale ◽  
Effluent Water ◽  
Small Influence ◽  
Volumetric Loading

A pilot study was carried out to evaluate the application of aerobic submerged MBR in treating polyester wastewater and a full scale system in which MBR was adopted as the key aspect was put forward to treat the polyester wastewater of Zhuhai Yuhua Polyester co., Ltd., China. The pilot study revealed that HRT could be affected by the influent COD, and a HRT larger than 36h was proposed for treating polyester wastewater by MBR. Volumetric loading rate and sludge loading rate ranged in 0.7-2.0 kgCOD/m3•d and 0.09~0.24 kgCOD/ kgMLSS•d respectively were of small influence on the COD removal. DO in the range of 2.5-4.0 mg/L seemed to be optimal for avoiding limitations due to oxygen concentration and creating an effective turbulence. The modified full scale system which includes anaerobic digesting tank and MBR followed by a stabilization pond was verified to be effective to treat the polyester wastewater in the latest two years. The results illustrated that the effluent water quality could meet the discharge limits of water pollutants (DB 44/26-2001) which was established in Guangdong, China. Observed sludge yield of the system fluctuated between 0.10-0.18 gMLSS/gCOD and averaged at 0.137 gMLSS/gCOD. The membrane permeate at around 10 L/m2h, TMP of less than 0.7bar, and total mixed liquor suspended solids (MLSS) between 6-7g/L were suitable to operate the MBR.

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