Pilot study on urban sewage treatment with micro-pressure double-cycle reactor

2021 ◽  
Vol 215 ◽  
pp. 10-22
Author(s):  
Shengshu Ai ◽  
Shuangshi Dong ◽  
Zebing Nie ◽  
Fan Wang ◽  
Xuejian Sun ◽  
...  
Keyword(s):  
Pilot Study ◽  
Sewage Treatment ◽  
Urban Sewage

Pilot study on urban sewage treatment with micro pressure swirl reactor

2021 ◽  
Vol 320 ◽  
pp. 124305
Author(s):  
Zebing Nie ◽  
Mingxin Huo ◽  
Fan Wang ◽  
Shengshu Ai ◽  
Xuejian Sun ◽  
...  
Keyword(s):  
Pilot Study ◽  
Sewage Treatment ◽  
Urban Sewage ◽  
Pressure Swirl

Life Cycle Assessment of Urban Wastewater Treatment

2014 ◽  
Vol 535 ◽  
pp. 346-349
Author(s):  
Mei Wang ◽  
Ming Yang ◽  
Jun Liu ◽  
Jian Fen Li
Keyword(s):  
Wastewater Treatment ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Wastewater Treatment Plant ◽  
Sewage Treatment ◽  
Treatment Plant ◽  
Urban Wastewater ◽  
Urban Sewage ◽  
Urban Wastewater Treatment ◽  
Whole Life Cycle

Effect and benefits of a product or service could be analyzed and evaluated by life cycle assessment during the whole life cycle. Urban sewage treatment plants could improve and control urban water pollution escalating, but it also had certain harm to environment. Effect and benefits of urban wastewater treatment plant A and B were analyzed and evaluated, 13 factors were selected, and comprehensive benefits were researched quantificationally using the method of analytic hierarchy process. It found that urban wastewater treatment plant A who applied A/O process had better benefits than urban wastewater treatment plant B who applied BIOLAK process.

Estrogenic compounds in Tunisian urban sewage treatment plant: occurrence, removal and ecotoxicological impact of sewage discharge and sludge disposal

Ecotoxicology ◽  
2016 ◽  
Vol 25 (10) ◽  
pp. 1849-1857 ◽  
Author(s):  
Dalel Belhaj ◽  
Khaled Athmouni ◽  
Bouthaina Jerbi ◽  
Monem Kallel ◽  
Habib Ayadi ◽  
...  
Keyword(s):  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Estrogenic Compounds ◽  
Sewage Discharge ◽  
Urban Sewage ◽  
Sludge Disposal

Characteristics and Hazard of the Wastewater from the City Garbage Transfer Stations

2014 ◽  
Vol 955-959 ◽  
pp. 2919-2925
Author(s):  
Qing Wang ◽  
Wen Yu Zhao ◽  
Bang Ding Ma ◽  
Yu Wu ◽  
Kang Huai Liu
Keyword(s):  
Membrane Separation ◽  
Sewage Treatment ◽  
Toxic Heavy Metals ◽  
High Concentration ◽  
Average Value ◽  
Urban Sewage ◽  
Waste Transfer ◽  
Wastewater Samples ◽  
Transfer Stations ◽  
The City

Nine wastewater samples of waste transfer stations had been gathered and analysis in Guilin city. The results indicate that all sewage belongs to high concentration organic wastewater originating from the waste transfer stations. The average value of wastewater’s COD is 5759mg/L and the maximum value is nearly 28000 mg/L. Its organic pollutants are mainly related to the residues of animals and plants. The content of lead(Pb), Chromium (Cr) and other toxic heavy metals in the wastewater could be 10 times higher than emissions standards, and especially total phosphorus’(TP) content could reach to more than 20 times of discharge standard. In order to protect the environmental quality in the vicinity of them and normally operating of the urban sewage treatment plants, it is necessary that these wastewater should be treated alone. A proposal is that integrated equipment should be made by using some technologies combined biology with membrane separation. Through disperse treatment by the equipment, urban sewage transfer stations could be reused or discharged on standard.

Assessment of the Effects of Ornamental Wetland Polyculture Combinations on Urban Sewage Treatment

2021 ◽  
Author(s):  
Min Wang ◽  
Yujue Zhou ◽  
Lin Xiang ◽  
Xiaoyang Ke ◽  
Hui Zhang ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Municipal Wastewater ◽  
Plant Biomass ◽  
Removal Rate ◽  
Sewage Treatment ◽  
Oxygen Demand ◽  
Wetland Plant ◽  
Urban Sewage ◽  
Thalia Dealbata ◽  
Cyperus Alternifolius

Abstract Previous studies have shown that wetland plants can treat wastewater in a cost-effective and sustainable way, however, the studies on the performance of ornamental wetland plant diversity in treating urban sewage were scarce. Therefore, this study was conducted to assess and select wetland polyculture combination that was effective in urban sewage treatment in subtropical areas. We formed five combinations out of six ornamental wetland plant species including Thalia dealbata, Cyperus alternifolius, Iris pseudacorus, Lythrum sastlicaria, Nymphaea tetragona, and Zantedeschia aethiopica. The growth state and removal effects of each plant combination were systematically measured and assessed. The results indicated all the combinations exhibited remarkable total nitrogen (TN), total phosphorus (TP), ammonium nitrogen (NH­4+-N), and chemical oxygen demand chromium (CODcr) removal rate of 70.75%-77.67%, 63.86%-73.71%, 69.73%-76.85%, and 57.28%-75.69%, respectively. Additionally, pH was reduced to 7.54-8.00 in the sewage. The purification effect reached the best during 30-36th day. The comprehensive assessment showed the mixture of Thalia dealbata + Cyperus alternifolius, closely followed by Thalia dealbata + Cyperus alternifolius+ Lythrum sastlicaria, was highly effective at extracting various pollutants, and both of them could be used as favorable combinations to convert eutrophication and purify municipal wastewater. Linear regression showed that TP, TP, NH­4+-N, and CODcr. were significantly related to plant biomass, indicating that plant biomass essential indicator for screening purification plants. Our study highlighted the importance of plant diversity in biological wastewater treatment, however the competition between plants was suggested to take into consideration in future studies.

Research on Sewage Treatment Technology of High Salt City in Tangshan Coastal Development Zone

2012 ◽  
Vol 599 ◽  
pp. 543-546
Author(s):  
Yang Yong ◽  
Xiao Liu ◽  
Yao Zong Zhang
Keyword(s):  
Economic Development ◽  
Sewage Treatment ◽  
Coastal Areas ◽  
Coastal Development ◽  
Biochemical Treatment ◽  
Treatment Technology ◽  
Development Zone ◽  
Technical Parameters ◽  
Urban Sewage ◽  
Technical Programs

With the economic development of the coastal development zone, the coastal industrial and economic development is rapid and the other residents' living consumption is lagging behind, resulting in a new coastal development zone COD / BOD low, coupled with the regional characteristics of the coastal areas, making the coastal areas of urban sewagetreatment plant of the difficult problems of biochemical treatment. This study focused on the reasons for the difficulties of urban sewage in coastal areas of biochemical treatment solution to the problem, and provide relevant technical programs and technical parameters for the construction of a new coastal development zone in the city sewage treatment.

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