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Volume 40 Issue 5
Jul.  2022
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LI Qing-qing, YANG Yan, XI Huan, GUO Feng, ZHANG Jian-feng, RUAN Shi-ping. TREATMENT OF HIGH-SALINITY PHOSPHATE-CONTAINING WASTEWATER BY CHEMICAL PRECIPITATION METHOD[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(5): 31-36. doi: 10.13205/j.hjgc.202205005
Citation: LI Qing-qing, YANG Yan, XI Huan, GUO Feng, ZHANG Jian-feng, RUAN Shi-ping. TREATMENT OF HIGH-SALINITY PHOSPHATE-CONTAINING WASTEWATER BY CHEMICAL PRECIPITATION METHOD[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(5): 31-36. doi: 10.13205/j.hjgc.202205005

TREATMENT OF HIGH-SALINITY PHOSPHATE-CONTAINING WASTEWATER BY CHEMICAL PRECIPITATION METHOD

doi: 10.13205/j.hjgc.202205005
  • Received Date: 2021-04-12
    Available Online: 2022-07-02
  • High-salinity phosphate-containing wastewater has the characteristics of high salt content, complex pollutant composition and is difficult to be treated by the biological method. The supernatant will contain some PO3-4-P after struvite production by adding excessive inducers and diluents such as Na2HPO4 and NH4HCO3 to seawater. A chemical precipitation method was applied for excessive phosphate removal. In our experiment, poly-aluminium chloride(PAC), FeCl3, Ca(OH)2 and polyacrylamide(PAM) were selected as experimental chemical reagents. The effect of reaction time, the additive amount of a single chemical reagent and a combination of chemical reagents on the phosphate removal effect were studied. Finally, two strategies were selected, which could make the phosphate content in the effluent meet the emission standard. Strategy 1:adding Ca(OH)2 with a molar ratio of Ca:P of 4.5 made the PO3-4-P content decrease to 0.2 mg/L. Strategy 2:adding Ca(OH)2 with a molar ratio of Ca:P of 4.0, PAC with a molar ratio of Al:P of 0.5, and PAM with a concentration of 0.5 g/L made PO3-4-P content decrease to 0.4 mg/L. Strategy 1 was easy to operate while strategy 2 was helpful for solid-liquid separation. Both of them can be used for the treatment of high-salinity phosphate-containing wastewater. The results provide a practical idea for the treatment of high-salinity phosphate-containing wastewater in the future.
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  • [1]
    李芳,刘柏林.PFS和PAM化学沉淀法处理高磷废水的实验研究[J].广州化工,2020,48(14):85-87.
    [2]
    城镇污水处理厂污染物排放标准:GB 18918-2002[S].北京:国家环境保护总局,2002.
    [3]
    ZAMAN M,KIM M,NAKHLA G,et al.Enhanced biological phosphorus removal using thermal alkaline hydrolyzed municipal wastewater biosolids[J].Journal of Environmental Sciences,2019,86(12):164-174.
    [4]
    MARTINS M C,SANTOS E B H,MARQUES C R.First study on oyster-shell-based phosphorous removal in saltwater:a proxy to effluent bioremediation of marine aquaculture[J].Science of the Total Environment,2017,574(JAN.1):605-615.
    [5]
    SUN H J,MOHAMMED A N,LIU Y.Phosphorus recovery from source-diverted blackwater through struvite precipitation[J].Science of the Total Environment,2020,743(NOV.15):140747.
    [6]
    SHTULL-TRAURING E,COHEN A,BEN-HUR M,et al.Reducing salinity of treated waste water with large scale desalination[J].Water Research,2020,186:116322.
    [7]
    GU K H,HEE A D.Study on the biological denitrification reaction of high-salinity wastewater using an aerobic granular sludge (AGS)[J].Journal of Environmental Science International,2019,28(7):607-615.
    [8]
    ZHANG H,ELSKENS M,CHEN G,et al.Phosphate adsorption on hydrous ferric oxide (HFO) at different salinities and pHs[J].Chemosphere,2019,225(JUN.):352-359.
    [9]
    陈阳.石灰-氟化钠复合絮凝剂除磷试验研究[D].杭州:浙江大学,2014.
    [10]
    马韩静,李玲玲,孙子惠,等.复合除磷剂的使用与分次投加方式对除磷效果的影响[J].净水技术,2019,38(3):76-81.
    [11]
    JEON K J,KIM J H,AHN J H.Phosphorus removal characteristics of titanium salts compared with aluminum salt[J].Water Environment Research,2017,89(8):739-743.
    [12]
    MBAMBA C K,LINDBLOM E,FLORES-ALSINA X,et al.Plant-wide model-based analysis of iron dosage strategies for chemical phosphorus removal in wastewater treatment systems[J].Water Research,2019,155:12-25.
    [13]
    JI L,YIN C S,CHEN X Y,et al.Hydrogen peroxide coordination-calcium salt precipitation for deep phosphorus removal from crude sodium tungstate solution[J].Hydrometallurgy,2020,191:105189.
    [14]
    吴志宇,黎建平,王怡璇,等.化学镀镍废液钙盐沉淀法除磷工艺的研究[J].电镀与环保,2019,39(5):72-74.
    [15]
    冉子寒,张宇峰,顾瑞之,等."化学沉淀-超滤"组合工艺处理焦磷酸盐镀铜废水的研究[J].膜科学与技术,2020,40(2):6-13.
    [16]
    唐益洲,孟勇,崔磊,等.电催化氧化-化学沉淀耦合工艺处理化学镀镍废水[J].工业水处理,2017,37(5):58-62.
    [17]
    司马卫平.高盐高氮磷榨菜有机废水与城镇污水协同处理脱氮除磷研究[D].重庆:重庆大学,2013.
    [18]
    HU P,REN J,HU X Y,et al.Comparison of two starch-based flocculants with polyacrylamide for the simultaneous removal of phosphorus and turbidity from simulated and actual wastewater samples in combination with FeCl3[J].International Journal of Biological Macromolecules,2021,167(15):223-232.
    [19]
    靳雅莉,谢雨桐,马洪霞,等.含聚丙烯酰胺废水处理技术的研究进展[J].化工技术与开发,2019,48(10):14.
    [20]
    杨二亮,周元祥,王洪雷,等.PAC-PAM联合处理某工业园电镀废水的处理效果试验[J].绿色科技,2016(16):141-143.
    [21]
    曾德芳,徐保林.沉淀-絮凝结合法处理磷化废水的研究[J].环境工程学报,2009,3(5):795-798.
    [22]
    任婷.高纯石墨生产中含氟废水处理工艺研究[D].哈尔滨:哈尔滨工业大学,2016.
    [23]
    黄淦.联用强化混凝与化学沉淀法去除水中重金属离子的研究[D].长沙:湖南大学,2008.
    [24]
    BACHAND P A M,VAITHIYANATHAN P,RICHARDSON C J.Phosphorous removal improvements and cost reductions leveraging cationic polymers and anionic polyacrylamides in Chemically Enhanced Treatment Wetland (CETW) systems[J].Ecological Engineering,2020,146:105722.
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