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《Journal of Dalian Minzu University》 2018-03
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Study on the Treatment Ability of COD Removal in Simulated Mariculture Wastewater by Photosynthetic Bacteria

WANG Bing;BAI Xuan;WANG Jia-li;ZHAO Le;YANG Bao-ling;WU Pan;School of Environment and Resources,Dalian Minzu University;  
To solve the problem of mariculture wastewater treatment by the biological method,and to provide an experimental basis for the practical application of photosynthetic bacteria,the removal efficiency of COD,nitrogen and phosphorus in artificial mariculture wastewater by photosynthetic bacteria was studied in this paper. The mariculture wastewater was simulated and COD was determined by alkaline permanganimetric method. The effects of initial concentration of COD,the dosage of PSB,and illumination,anaerobic and aerobic conditions on removal efficiency were investigated. The results showed that COD removal efficiency was optimal with 200 ml bacteria added to the system. When initial COD concentration was 1 000,500,250 and 125 mg·L~(-1),COD removal efficiency reached to 28. 1%,75. 0%,87. 5% and 87. 5% after four days,respectively. The aerobic low light level and dark is beneficial to the removal of COD. The photosynthetic bacteria( PSB001) can be used as a biological strengthening strain for the purification of mariculture wastewater.
【Fund】: 国家自然科学基金资助项目(31700432);; 中央高校基本科研业务费专项资金资助项目(150505);; 大连民族大学教育教学改革项目(20176004)
【CateGory Index】: X714
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