以玉米淀粉废水为反硝化碳源的研究
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摘要
碳源性能是制约反硝化脱氮的重要因素,研究了玉米淀粉废水处理过程中初沉池出水与水解酸化池出水作为碳源的可行性。分析了反硝化过程中溶解性有机物、pH以及氮的变化情况;并通过正交试验对比分析了两种废水碳源在不同温度、反应时间、pH及碳氮比条件下的硝氮去除率。结果表明,以淀粉废水初沉池出水为碳源去除硝氮的最优条件是温度为45℃,反应时间为1h,pH=6,C/N=9;以淀粉废水水解酸化池出水为碳源的最优条件是温度为35℃,反应时间为1h,pH=8,C/N=7。
引文
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[3]HENZE M.Capabilities of biological nitrogen removal processesbfrom wastewater[J].Water Science&Technology,1991,23(4-6):669-679.
[4]OVEZ B,OZGEN S,YUKSEL M.Biological denitrification in drinking water using Glycyrrhiza glabra and Arunda donax as the carbon source[J].Process Biochemistry,2006,41(7):1539-1544.
[5]金赞芳,陈英旭,小仓纪雄.以棉花为碳源去除地下水硝酸盐的研究[J].农业环境科学学报,2004,23(3):512-515.
[6]Wu W.Z.,Yang L H.,Wang J.L Denitrification using PBS as carbon source and biofilm support in a packedbed bioreactor.[J].Environmental Science&Pollution Research,2012,20(1):333-339.
[7]Chu L,Wang J.Denitrification performance and biofilm characteristics using biodegradable polymers PCL as carriers and carbon source[J].Chemosphere,2013,91(9):1310-1316.
[8]Loss E,Royer A R,Barreto-Rodrigues M,et al.Use of maize wastewater for the cultivation of the Pleurotus spp.mushroom and optimization of its biological efficiency[J].Journal of hazardous materials,2009,166(2):1522-1525.
[9]Chang M,Zhou S G,Lu N,e al.Starch processing wastewater as a new medium for production of Bacillus thuringiensis[J].World Journal of Microbiology&Biotechnology,2008,24(4):441-447.
[10]Brar SK,Verma M,Tyagi R D,et al.Efficient centrifugal recovery of Bacillus thuringiensis biopesticides from fermented wastewater and wastewater sludge[J].Water Research,2006,40(6):1310-1320.
[11]Huang L P,Jin B,Lant P,et al.Simultaneous saccharification and fermentation of potato starch wastewater to lactic acid by Rhizopus oryzae and Rhizopus arrhizus[J].Biochemical Engineering Journal,2005,23(3):265-276.
[12]Pu S Y,Qin L L,Che J P,et al.Preparation and application of a novel bioflocculant by two strains of Rhizopus sp.using potato starch wastewater as nutrilite[J].Bioresource Technology,2014,162:184-191.
[13]Kim BH,Park HS,Kim HJ,et aL Enrichment of microbial community generating electricity using a fuel-celltype electrochemical cell[J].Applied Microbiology and Biotechnology,2004,63(6):672-681.
[14]O-Thong S,Hniman A,Prasertsan P,et aL Biohydrogen production from cassava starch processing wastewater by thermophilic mixed cultures[J].International Journal of Hydrogen Energy,2011,36(5):3409-3416.
[15]Muniraj I K,Xiao L W,Hu Z H,et al.Microbial lipid production from potato processing wastewater using oleaginous filamentous fungi Aspergillus oryzae[J].Water Research,2013,47(10):3477-3483.
[16]国家环境保护总局.水和废水监测分析方法(第4版).北京:中国环境科学出版社,2002.
[17]王然,王彤,程家运,等.ABS树脂废水有机物反硝化潜势及降解特性[J].环境科学研究,2014,27(11):1379-1386.
[18]马娟,彭永臻,王丽,等.温度对反硝化过程的影响以及pH值变化规律[J].中国环境科学,2008,28(11):1004-1008.
[19]高景峰,彭永臻,王淑莹,等.以DO、ORP、pH控制SBR法的脱氮过程[J].中国给水排,2001,17(04):6-11.
[20]Cokg(o|¨)r E U,Sozen S,Orhon D,et al.Respirometric analysis of activated sludge behaviour—Ⅰ.Assessment of the readily biodegradable substrate[J].Water Research,1998,32(2):461-475.
[21]闫海红,年跃刚,周岳溪,等.预处理-水解酸化-厌氧-好氧工艺对玉米淀粉废水有机污染物的降解[J].环境工程学报,2015,9(10):4673-4679.