江西理工大学学报
江西理工大學學報
강서리공대학학보
JOURNAL OF JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
2014年
3期
18-22,28
,共6页
隔油%破乳%Fenton氧化%混凝沉降%乳化液废水
隔油%破乳%Fenton氧化%混凝沉降%乳化液廢水
격유%파유%Fenton양화%혼응침강%유화액폐수
oil separation%demulsification%Fenton oxidation%coagulation sedimentation%emulsified wastewater
针对某难处理高浓度乳化液废水，提出了隔油-破乳-Fenton氧化-混凝联合处理工艺.试验结果表明：乳化液废水静浮20 min除去上层浮油，在废水pH值8.0，PAC投加量8.0 g/L，0.1‰PAM投加量10 mL/L的条件下破乳效果较好.废水继续通过Fenton 试剂氧化及混凝沉降处理，当Fenton氧化初始pH 值3.5，H2O2（30%）投加量12 mL/L，[H2O2]/[Fe2+]=4∶1，一次性投加FeSO4·7H2O，反应时间45 min及混凝沉降pH值8.0，混凝剂投加量0.3 g/L时，处理效果令人满意.采用该工艺处理高浓度乳化液废水，其COD去除率为99.91%，浊度去除率为98.96%，石油类去除率为99.97%，处理后水质达到《污水综合排放标准》（GB8978-1996)二级标准.
針對某難處理高濃度乳化液廢水，提齣瞭隔油-破乳-Fenton氧化-混凝聯閤處理工藝.試驗結果錶明：乳化液廢水靜浮20 min除去上層浮油，在廢水pH值8.0，PAC投加量8.0 g/L，0.1‰PAM投加量10 mL/L的條件下破乳效果較好.廢水繼續通過Fenton 試劑氧化及混凝沉降處理，噹Fenton氧化初始pH 值3.5，H2O2（30%）投加量12 mL/L，[H2O2]/[Fe2+]=4∶1，一次性投加FeSO4·7H2O，反應時間45 min及混凝沉降pH值8.0，混凝劑投加量0.3 g/L時，處理效果令人滿意.採用該工藝處理高濃度乳化液廢水，其COD去除率為99.91%，濁度去除率為98.96%，石油類去除率為99.97%，處理後水質達到《汙水綜閤排放標準》（GB8978-1996)二級標準.
침대모난처리고농도유화액폐수，제출료격유-파유-Fenton양화-혼응연합처리공예.시험결과표명：유화액폐수정부20 min제거상층부유，재폐수pH치8.0，PAC투가량8.0 g/L，0.1‰PAM투가량10 mL/L적조건하파유효과교호.폐수계속통과Fenton 시제양화급혼응침강처리，당Fenton양화초시pH 치3.5，H2O2（30%）투가량12 mL/L，[H2O2]/[Fe2+]=4∶1，일차성투가FeSO4·7H2O，반응시간45 min급혼응침강pH치8.0，혼응제투가량0.3 g/L시，처리효과령인만의.채용해공예처리고농도유화액폐수，기COD거제솔위99.91%，탁도거제솔위98.96%，석유류거제솔위99.97%，처리후수질체도《오수종합배방표준》（GB8978-1996)이급표준.
Aiming at the difficulty in treating high-strength emulsified wastewater, the paper puts forward the process of oil separation-demulsification-Fenton oxidation-coagulation. The experimental results showed that Emulsion wastewater removes the floating oil after 20 minutes with pH 8.0 of the wastewater; the demulsification effect is better when the PAC dosage is 8 .0 g/L, and 0.1 ‰ PAM 10 mL/L. The wastewater continue to receive the Fenton reagent oxidation and coagulation sedimentation treatment. When the initial pH of Fenton oxidation is 3.5, the dosage of H2O2 (30 %) is 12 mL/L, [H2O2]/[Fe2+]=4:1, dose FeSO4·7H2O with the reaction time of 45 minutes and coagulation sedimentation pH is 8.0. When coagulant dosage is 0.3 g/L, the effect is satisfactory . The process for treating the high concentrated wastewater , the COD removal rate is 99 . 91 %, turbidity removal rate 98.96 %, and oil removal rate 99.97 %. The quality of treated water reaches Class B of Integrated Wastewater Discharge Standard (GB8978-1996).
