可控内循环厌氧反应器处理木薯模拟废水的动力学研究

发布时间：2018-01-13 23:04

本文关键词：可控内循环厌氧反应器处理木薯模拟废水的动力学研究　出处：《水处理技术》2016年11期 　论文类型：期刊论文

【摘要】：对新型可控内循环厌氧反应器处理木薯模拟废水的动力学特性进行了研究,在进水COD为6~7 g/L条件下,考察了不同的HRT与反应器出水COD的关系,通过Eckenfelder模型与物料衡算,建立了其动力学模型,并确定了动力学参数。结果表明,在假设反应器第1反应区为完全混合状态、第2反应区为平推流状态的条件下,第1反应区的动力学模型可用S_m=S_i/(1+K_1t_1)表示,第2反应区的动力学模型可用S_(me)=S_m/exp(K_2t_2-C)表示,其中K_1=0.833 3 h~(-1),K_2=0.056 63 h~(-1)。该模型预测的COD与实测COD第1反应区出水平均相对误差为9.43%,第2反应区的平均相对误差为16.84%。而当可控内循环开启后,需引入修正系数α(2.0~2.8),经修正后的计算COD与实测COD吻合度较高。
[Abstract]:The dynamic characteristics of the novel controllable internal circulation anaerobic reactor treatment of cassava wastewater were studied, the influent COD to 6~7 g/L, investigated the relationship between HRT and the reactor effluent COD different, through the Eckenfelder model and material balance, the dynamic model was established, and the kinetic parameters were determined. The results showed that on the assumption that the first reactor reaction zone is completely mixed state, the second reaction zone of plug flow state under the condition of dynamic model of the first reaction zone by S_m=S_i/ (1+K_1t_1) said that the dynamic model of the second reaction zone by S_ (me) =S_m/exp (K_2t_2-C), including 3 K_1=0.833 h~ (-1), K_2=0.056 63 h~ (-1). The predicted and measured COD COD first reaction zone from the average relative error is 9.43%, the average relative error is second 16.84%. when the reaction zone controlled internal circulating after opening, need to introduce a correction coefficient (2.0~2.8), The corrected calculation of COD is in good agreement with the measured COD.

【作者单位】：广西师范大学环境与资源学院;岩溶生态与环境变化研究广西高校重点实验室;
【基金】：广西千亿元产业重大科技攻关项目(11107021-5-3) 广西自然科学基金(2013GXNSBA019213)
【分类号】：X703.1
【正文快照】： 内循环厌氧(IC)反应器作为第3代厌氧反应器的代表,具备诸多优点,其占地面积小、运行状态稳定、处理效率高、适合处理高含量、可生化性好的有机废水,对不同性质的废水都有较好的适应性,且能和多种好氧工艺组成联合工艺使用[1-4]。目前IC反应器应用越来越广泛,已成功应用于啤酒

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