园林废弃物生物炭/O_(3)曝气法预处理亚甲基蓝染整废水  

Pretreatment of methylene blue dyeing and finishing wastewater by biocha/O3 aeration of garden waste

作　　者：闫凡峰 王圳 邓德法 YAN Fan-feng;WANG Zhen;DENG De-fa(Lianyungang Cangwu Green Park Management Office,Lianyungang 222000,China;Lianyungang Forestry Technical Guidance Station,Lianyungang 222000,China;Qingdao Haida Biological Group,Qingdao 266000,China)

机构地区：[1]连云港市苍梧绿园管理处,江苏连云港222000 [2]连云港市林业技术指导站,江苏连云港222000 [3]青岛海大生物集团,山东青岛266000

出　　处：《化学工程师》2023年第1期46-49,共4页Chemical Engineer

基　　金：连云港市科技计划基金项目(SF2135);连云港市建设系统科技项目。

摘　　要：利用多种园林废弃物制备生物炭并联合O3曝气法预处理亚甲基蓝(MB)染整废水,考察由椰壳、香樟叶、茶叶及狗尾牙草等园林废弃物制备而成的生物炭和O3的投加量、反应pH值对亚甲基蓝染料废水的去除率影响情况。结果显示,当生物炭投加量选取2g·L^(-1)的椰壳生物炭、O313mg·min^(-1)、pH值为4时,所得最优COD去除率为61.2%,废水UV254最高去除率可达35.15%,BOD5/COD值最高可升至0.53,发光细菌抑制率最低降至38.1%。本方法可有效地降解废水中的有机物分子不饱和键和芳香环结构,显著提高废水的可生化性且降低其生物毒性,具有一定的实际推广应用价值。Different garden wastes were used to prepare biochar and ozone aeration method to pretreat methylene blue(MB)dye.In the experiment,the dosage of biochar and ozone and pH value of reaction to methylene blue dye were respectively investigated.According to the experimental results,when the biochar dosage of 2g·L^(-1)coconut shell biochar,ozone dosage of 13mg·min^(-1),pH=4,the optimal COD removal rate is 61.2%.In the performance verification experiments of wastewater UV254 removal,biodegradability improvement and biological toxicity reduction,it can be seen that the maximum removal rate of UV254 is 35.15%,BOD5/COD value is up to 0.53,and the inhibition rate of luminescent bacteria is down to 38.1%.The results show that the method can effectively degrade the unsaturated bond and aromatic ring structure of organic compounds in wastewater,significantly improve the biodegradability of wastewater and reduce its biological toxicity,which has a certain reference significance.

关 键 词：生物炭 园林废弃物 亚甲基蓝废水 化学需氧量 

分 类 号：X703[环境科学与工程—环境工程]