CAJ | 학술논문

对玉米深加工企业EGSB＋A/O废水处理工艺进行问题诊断，提出清洁生产的改造措施，研究其对废水处理效果的影响。结果表明，在主生产车间加装澄清离心机和废水预处理段增设竖流沉降罐，提高了EGSB反应器的运行效率，反应器进出水CODCr平均值分别下降59％和62％以上，比产气率提高45％。改造后二沉池出水CODCr、BOD5、NH4＋-N、SS 平均浓度从124、31、57和33 mg/L 降至55、9、5和19 mg/L，出水 pH 为6.3～6.9，达到 GB 25461-2010《淀粉工业水污染物排放标准》要求。改造工程同时可创造132.04万元/a的经济效益。
대옥미심가공기업EGSB＋A/O폐수처리공예진행문제진단，제출청길생산적개조조시，연구기대폐수처리효과적영향。결과표명，재주생산차간가장징청리심궤화폐수예처리단증설수류침강관，제고료EGSB반응기적운행효솔，반응기진출수CODCr평균치분별하강59％화62％이상，비산기솔제고45％。개조후이침지출수CODCr、BOD5、NH4＋-N、SS 평균농도종124、31、57화33 mg/L 강지55、9、5화19 mg/L，출수 pH 위6.3～6.9，체도 GB 25461-2010《정분공업수오염물배방표준》요구。개조공정동시가창조132.04만원/a적경제효익。
The problem diagnosis was performed for EGSB +A/O wastewater treatment process of a corn starch enterprise , and the cleaner production renovation measure were proposed for the enterprise .The effects of the cleaner production renovation measure on wastewater treatment effectiveness were investigated .The results showed that the operational efficiency of EGSB reactor could be enhanced by adding a centrifuge in the main workshop and vertical flow sedimentation tank in wastewater pretreatment section .The average CODCr of the inlet and outlet were reduced by 59% and 62% respectively , and the specific methane production rate was increased by 45%.After renovation engineering, the average CODCr, BOD5, NH4+-N, SS concentrations of the effluent wastewater from the secondary sedimentation tank were reduced from 124, 31, 57 and 33 mg/L to 55, 9, 5 and 19 mg/L, respectively, and the pH was 6.3-6.9, all meeting with Discharge Standard of Water Pollutants for Starch Industry (GB 25461-2010).The clean production renovation engineering could also create an annual economic benefit of 1.320 4 million Yuan .