工业水处理
工業水處理
공업수처리
INDUSTRIAL WATER TREATMENT
2014年
8期
36-39,40
,共5页
非均相催化臭氧化%钻井废水%深度处理
非均相催化臭氧化%鑽井廢水%深度處理
비균상최화취양화%찬정폐수%심도처리
heterogeneous catalytic ozonation%drilling wastewater%advanced treatment
采用单独臭氧氧化、MnO2吸附和O3/MnO2催化氧化3种体系对经过混凝处理后的钻井废水进行深度处理，重点研究了O3/MnO2催化氧化体系去除钻井废水中有机物（以COD计）的效能。结果表明：相比单独臭氧氧化和MnO2吸附体系，O3/MnO2催化氧化体系能显著提高COD和TOC的去除率；COD去除率随着臭氧投加量和催化剂投加量的增加、pH的升高和反应时间的增加而增大；在臭氧投加量为80 mg/L、pH为11.5、催化剂投加量为20 g/L、反应时间为40 min的最佳工艺条件下，COD和TOC的去除率分别达到87.51%、83.18%，COD从686.28 mg/L降至85.72 mg/L，出水达到《污水综合排放标准》（GB 8978-1996）的一级标准要求。
採用單獨臭氧氧化、MnO2吸附和O3/MnO2催化氧化3種體繫對經過混凝處理後的鑽井廢水進行深度處理，重點研究瞭O3/MnO2催化氧化體繫去除鑽井廢水中有機物（以COD計）的效能。結果錶明：相比單獨臭氧氧化和MnO2吸附體繫，O3/MnO2催化氧化體繫能顯著提高COD和TOC的去除率；COD去除率隨著臭氧投加量和催化劑投加量的增加、pH的升高和反應時間的增加而增大；在臭氧投加量為80 mg/L、pH為11.5、催化劑投加量為20 g/L、反應時間為40 min的最佳工藝條件下，COD和TOC的去除率分彆達到87.51%、83.18%，COD從686.28 mg/L降至85.72 mg/L，齣水達到《汙水綜閤排放標準》（GB 8978-1996）的一級標準要求。
채용단독취양양화、MnO2흡부화O3/MnO2최화양화3충체계대경과혼응처리후적찬정폐수진행심도처리，중점연구료O3/MnO2최화양화체계거제찬정폐수중유궤물（이COD계）적효능。결과표명：상비단독취양양화화MnO2흡부체계，O3/MnO2최화양화체계능현저제고COD화TOC적거제솔；COD거제솔수착취양투가량화최화제투가량적증가、pH적승고화반응시간적증가이증대；재취양투가량위80 mg/L、pH위11.5、최화제투가량위20 g/L、반응시간위40 min적최가공예조건하，COD화TOC적거제솔분별체도87.51%、83.18%，COD종686.28 mg/L강지85.72 mg/L，출수체도《오수종합배방표준》（GB 8978-1996）적일급표준요구。
Three kinds of systems,including individual ozonation,MnO2 adsorption and O3/MnO2 catalytic oxidation have been used for the advanced treatment of coagulation-treated drilling wastewater. The removing efficiency of organic matter (counted as COD) from drilling wastewater by O3/MnO2 catalytic oxidation process is studied emphatically. The results show that compared with individual ozonation system and MnO2 adsorption system,it is found that O3/MnO2 catalytic oxidation system can remarkably improve the removing rates of COD and TOC. The COD removing rate increases with the increase of ozone dosage and catalyst dosage ,the rising of pH and lengthening of reaction time. Under the following optimum conditions:ozone dosage is 80 mg/L,pH 11.5,catalytic dosage 20 g/L, and reaction time 40 min, its COD and TOC removing rates are 87.51%and 83.18%,respectively. The concentration of COD declines from 686.28 mg/L to 85.72 mg/L. The effluent water quality could meet the first class of the Integrated Wastewater Discharge Standard(GB 8978-1996).
