Combined process of bio-contact oxidation-constructed wetland for blackwater treatment

2020 ◽  
Vol 316 ◽  
pp. 123891
Author(s):  
Zhan Jin ◽  
Yangfei Zheng ◽  
Xiangyu Li ◽  
Chuanjun Dai ◽  
Kaiqin Xu ◽  
...  
Keyword(s):  
Constructed Wetland ◽  
Combined Process ◽  
Contact Oxidation

The Fosfomycin Degradation by Hydrolysis Acidification-Biological Contact Oxidation and Microbial Community Analysis

2013 ◽  
Vol 807-809 ◽  
pp. 1129-1134
Author(s):  
Ping Zeng ◽  
Xiao Lin Xie ◽  
Yong Hiu Song ◽  
Chao Wei Zhu ◽  
Wen Ming Li ◽  
...  
Keyword(s):  
Phosphorus Removal ◽  
Organic Phosphorus ◽  
Community Analysis ◽  
Microbial Community Analysis ◽  
Antibiotics Resistance ◽  
Phosphorus Concentration ◽  
Combined Process ◽  
Contact Oxidation ◽  
Hydrolysis Acidification ◽  
Biological Contact Oxidation

The lab scale biological fosfomycin degradation by hydrolysis acidification-contact oxidation combined process was studied. And the microbial communities in hydrolysis acidification-contact oxidation combined process were analyzed. The results showed that the organic phosphorus was well degraded by hydrolysis acidification-contact oxidation combined process when organic phosphorus concentration in the influent was lower than 10 mg/l. The combined process could endure the loading with the influent organic phosphorus concentration between 10-20 mg/l. The community analysis showed that most of the phosphorus removal bacteria and antibiotics resistance bacteria were discovered in contact oxidation.

Rural Sewage Treatment by using Combined Process of Multi-layer Bio-filter and Constructed Wetland

2010 ◽  
Author(s):  
Xudong Li ◽  
Etienne Paul ◽  
Jiangping Qiu ◽  
Michel Roustan ◽  
Christelle Wisniewski ◽  
...  
Keyword(s):  
Constructed Wetland ◽  
Sewage Treatment ◽  
Combined Process

Research of Biological Phase in Contact Oxidation Pond for Jeans Washing Wastewater Biochemical Treatment

2013 ◽  
Vol 777 ◽  
pp. 247-252
Author(s):  
Zhi Bin Ding ◽  
Zhao Lu ◽  
Chao Zhang
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Morphological Changes ◽  
Biochemical Treatment ◽  
Obvious Effect ◽  
Combined Process ◽  
Oxidation Pond ◽  
Chironomid Larvae ◽  
Contact Oxidation ◽  
Washing Wastewater

The combined process of coagulation, hydrolytic acidification and contact oxidation was applied to treat the jeans washing wastewater, and the microorganism and COD concentration in the contact oxidation pond was monitored 40 consecutive days. the results showed that Vorticella, rotifers, arcellas, chironomid larvae, nematodes of the genus, changed in the number of the wastewater treatment had obvious indicating effect, activated sludge on the chromaticity of grain had obvious effect of adsorption, and flocculation particle morphological changes could also play a role in indicating.

Effect on Treating Urban Wastewater Process by Constructed Wetland Method

2013 ◽  
Vol 726-731 ◽  
pp. 1778-1781
Author(s):  
Jian She Yang ◽  
Xiao Dan Ke
Keyword(s):  
Water Quality ◽  
Constructed Wetland ◽  
Removal Rate ◽  
Domestic Sewage ◽  
Urban Wastewater ◽  
System A ◽  
Wetland System ◽  
Contact Oxidation ◽  
Engineered Wetland ◽  
Quality Indexes

Constructed wetland conduct technology is a kind of artificialgovernable and engineered wetland system. A multiplied technology combination of "Hydrolysis precipitation, Contact oxidation and Constructed wetland" has been applied to conduct the domestic sewage of the towns, and the combination of that, the treatment effect and the working cost have been discussed here. The testing results of outlet water quality indexes showed as following, the removal rate of the CODCr was reach to 77.8%, the removal rate of the BOD5 was reach to 83.3%, the removal rate of the T-P was reach to 87%, the removal rate of the SS was reach 80% and the removal rate of the NH3-N was reach 67%.

Treatment of Textile Wastewater Using Facultative Contact Reactor-Biological Contact Oxidation and Ozone Biological Aerated Filter

2013 ◽  
Vol 777 ◽  
pp. 318-325 ◽  
Author(s):  
Jia Qi Cui ◽  
Xiao Jun Wang ◽  
Xu Long Lin
Keyword(s):  
Textile Industry ◽  
Textile Wastewater ◽  
Pilot Scale ◽  
Operating Conditions ◽  
Biological Aerated Filter ◽  
Combined Process ◽  
Contact Oxidation ◽  
Aerated Filter ◽  
Textile Wastewater Treatment ◽  
Biological Contact Oxidation

The performance of a pilot scale combined process of facultative contact reactor-biological contact oxidation and ozone biological aerated filter (FCR-BCO-O3-BAF) treating real textile wastewater was investigated in this study. During the operating period, the average influent and effluent COD concentrations were 737.0mg/L and 15.6mg/L, the influent and effluent color were 750 times and 10 times, with the total HRT being 43.3h. The average COD and color removal efficiency were 97.9% and 98.7%, respectively. And the effluent COD and color satisfied the discharge standards (grade-1) of water pollutants for dyeing and finishing of textile industry (China). In the operating conditions, HRT of O3-BAF was decreased, leading to an increase of the effluent COD concentration. In addition, under the facultative circumstance by micro aeration in the FCR, where the dissolved oxygen (DO) was maintained in the range of 0.1-0.3mg/L, the growth of sulfate reducing bacteria (SRB) was inhibited. This study is a significant attempt to apply the combined process of FCR-BCO-O3-BAF to textile wastewater treatment.

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