The Shock Effect of Inorganic Suspended Solids in Surface Runoff on Wastewater Treatment Plant Performance

被引:16
作者
He, Li [1 ]
Tan, Tao [2 ]
Gao, Zhixi [1 ]
Fan, Leilei [1 ]
机构
[1] Zunyi Normal Univ, Coll Resources & Environm, Zunyi 563006, Peoples R China
[2] Chongqing Architectural Design Inst China, Chongqing 400015, Peoples R China
关键词
surface runoff; inorganic solids; wastewater treatment; MLVSS; MLSS; STORMWATER RUNOFF; ACTIVATED-SLUDGE; POLLUTION; QUALITY; URBANIZATION; ACCUMULATION; REDUCTION; SEDIMENTS; REMOVAL; MODELS;
D O I
10.3390/ijerph16030453
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Previous studies on the water quality of surface runoff often focused on the chemical oxygen demand (COD), nitrogen, phosphorus, and total suspended solid (TSS), but little is known in terms of the inorganic suspended solids (ISS). This research investigated the effects of ISS carried by surface runoff on the treatment efficiency of the pretreatment facilities and the ratio of mixed liquor volatile suspended solid to mixed liquor suspended solid (MLVSS/MLSS) of the activated sludge in a wastewater treatment plant (WWTP) with the anaerobic-anoxic-oxic (AAO) process in Chongqing city, China. The results showed that the surface runoff had a long-lasting impact on the grit removal capacity of the grit chamber, affecting the normal operation after the rainfall. In contrast, the primary sedimentation tank showed strong impact resistance with higher removal rates of COD, TSS, and ISS. Nonetheless, the primary settling tank aggravates the removal of organic carbon in sewage during rainfall, having a negative impact on subsequent biological treatment. The ISS in the surface runoff could increase the sludge concentration and decrease the MLVSS/MLSS ratio. After repeated surface runoff impact, the MLVSS/MLSS ratio in the activated sludge would drop below even 0.3, interrupting the normal operation of WWTP.
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页数:12
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共 32 条
[1]   Improving stormwater quality at source using catch basin inserts [J].
Alam, Md Zahanggir ;
Anwar, A. H. M. Faisal ;
Heitz, Anna ;
Sarker, Dipok Chandra .
JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2018, 228 :393-404
[2]   Urban rainwater runoff quantity and quality - A potential endogenous resource in cities? [J].
Angrill, Sara ;
Petit-Boix, Anna ;
Morales-Pinzon, Tito ;
Josa, Alejandro ;
Rieradevall, Joan ;
Gabarrell, Xavier .
JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2017, 189 :14-21
[3]  
[Anonymous], CHINA WATER WASTE WA
[4]   Whole-transcriptome response to wastewater treatment plant and stormwater effluents in the Asian clam, Corbicula fluminea [J].
Bertucci, Anthony ;
Pierron, Fabien ;
Gourves, Pierre-Yves ;
Klopp, Christophe ;
Lagarde, Gauthier ;
Pereto, Clement ;
Dufour, Vincent ;
Gonzalez, Patrice ;
Coynel, Alexandra ;
Budzinski, Helene ;
Baudrimont, Magalie .
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 2018, 165 :96-106
[5]   Evidence of the impact of urbanization on the hydrological regime of a medium-sized periurban catchment in France [J].
Braud, I. ;
Breil, P. ;
Thollet, F. ;
Lagouy, M. ;
Branger, F. ;
Jacqueminet, C. ;
Kermadi, S. ;
Michel, K. .
JOURNAL OF HYDROLOGY, 2013, 485 :5-23
[6]   Trace organic contaminants in urban runoff: Associations with urban land-use [J].
Burant, Aniela ;
Selbig, William ;
Furlong, Edward T. ;
Higgins, Christopher P. .
ENVIRONMENTAL POLLUTION, 2018, 242 :2068-2077
[7]   Urbanization and Rainfall-Runoff Relationships in the Milwaukee River Basin [J].
Choi, Woonsup ;
Nauth, Kathryn ;
Choi, Jinmu ;
Becker, Stefan .
PROFESSIONAL GEOGRAPHER, 2016, 68 (01) :14-25
[8]   Characterization and source identification of stormwater runoff in tropical urban catchments [J].
Chow, M. F. ;
Yusop, Z. .
WATER SCIENCE AND TECHNOLOGY, 2014, 69 (02) :244-252
[9]   Combined sewer overflows, sediment accumulation and element patterns of river bed sediments: a quantitative study based on mixing models of composite fingerprints [J].
David, Telse ;
Borchardt, Dietrich ;
von Tuempling, Wolf ;
Krebs, Peter .
ENVIRONMENTAL EARTH SCIENCES, 2013, 69 (02) :479-489
[10]   Comparison of heavy metal loads in stormwater runoff from major and minor urban roads using pollutant yield rating curves [J].
Davis, Brett ;
Birch, Gavin .
ENVIRONMENTAL POLLUTION, 2010, 158 (08) :2541-2545