도금폐수처리공정의 처리효율 개선방안
(주)코리아스칼라
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- 2016.07.02
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- 2016.02
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서지정보
ㆍ발행기관 : 대전대학교 환경문제연구소
ㆍ수록지정보 : 大田大學校 環境問題硏究所 論文集 / 20권
ㆍ저자명 : 마심초, 임봉수, 최찬수
영어 초록
This study was performed to evaluate the alternative improvement plans for removal efficiency of plating wastewater treatment processes with high concentrations of heavy metals and total nitrogen in the influent. The average removal efficiency rates of the existing wastewater treatment plant were 58% of CODcr, 74% of CODmn, 78% of TN, 99% of TP, respectively. However, the concentration of SS (about 250 mg/L) was over the emission standard (120 mg/L). TN and Cu2+ concentrations were over the emission standard; about 62 mg/L and 5.2 mg/L, respectively. Carbon source quantity, fed into the anoxic tank of the biological wastewater treatment process, was controled by calculating the optimum required COD amount for denitrification. The removal efficiency rates of Zn2+, Cu2+, and Ni2+ were achieved using an electrolysis reactor 89%, 89%, and 99%, respectively. Therefore, it was recommended to modify the existing wastewater treatment process including the chemical precipitation to the electrolysis reactor as an efficient and environmentally effective alternative.
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