某制药厂废水处理工艺改造案例的COD去除效果研究

发布时间：2018-06-20 13:53

本文选题：制药废水 + 物化预处理　；参考：《南昌大学》2015年硕士论文

【摘要】：在常见的高浓度有机污水中,制药废水属于一种较为难处理的,因为不同药厂生产药物品种的不同与生产工艺的不同而导致制药废水差异较大。大多制药废水的特点是组成成分复杂,含有有机污染物的种类多且浓度值高,废水中含CODCr值和BOD5值高且变化大,废水的BOD5/CODCr值差别也比较大,氨氮含量浓度高,色度深,毒性大,含固体悬浮物SS的浓度值也较高。而且制药厂通常产品的种类变化多端,从而导致其产生废水的水质水量和产生污染物的种类变化较多。江西某制药有限公司作为一家制药企业,其原有制药废水处理采用“物化预处理+水解酸化+A/O”工艺,但随着生产规模的逐步扩大及生产产品改变,导致原有废水处理工艺无法满足现生产处理规模,出水水质经常超标。本文通过对该厂制药废水来源、水质特点、原有工艺处理效果及现状存在问题的进行调研分析,提出采用“物化预处理+水解酸化+IC+A/O"组合工艺对原有处理工艺进行改造升级,解决了该公司原有处理工艺设计能力不能满足处理要求及排放标准的现状,保障了该公司处理出水达标排放。同时,本文对改造后新工艺设备IC反应塔进行了研究,并就其处理COD效果进行了分析,结果表明,经改扩建工艺IC反应塔处理后,高浓度废水进水COD平均去除率分别为87.88%。比原处理工艺COD去除率的57.67%大大提高,大大降低了后续处理单元负荷。
[Abstract]:In the common high concentration organic wastewater, the pharmaceutical wastewater is difficult to treat, because the different kinds of drugs produced by different pharmaceutical plants and the different production process lead to the difference of pharmaceutical wastewater. The characteristics of most pharmaceutical wastewater are complex composition, many kinds of organic pollutants and high concentration, high CODCr value and BOD5 value in wastewater, great difference of BOD5 / CODCr value in wastewater, high concentration of ammonia nitrogen, deep chroma and toxicity. The concentration of SS containing solid suspension is also higher. Moreover, the variety of products in pharmaceutical factories is varied, which leads to the change of water quality and quantity of wastewater and the kinds of pollutants produced. A pharmaceutical company in Jiangxi Province, as a pharmaceutical enterprise, used the "physicochemical pretreatment hydrolysis acidification A / O" process to treat pharmaceutical wastewater. However, with the gradual expansion of production scale and the change of production products, As a result, the original wastewater treatment process can not meet the existing scale of production treatment, and the effluent quality often exceeds the standard. In this paper, the source of pharmaceutical wastewater, the characteristics of water quality, the treatment effect of the original process and the problems existing in the present situation are investigated and analyzed. It is proposed that the original treatment process should be reformed and upgraded by the combination process of "physical and chemical pretreatment hydrolysis acidification IC / A / O", which resolves the current situation that the original process design capacity of the company cannot meet the treatment requirements and discharge standards. It ensures that the effluent of the company is up to the standard of discharge. At the same time, this paper studies the IC reactor of the new process equipment, and analyzes the effect of treating COD. The result shows that after the treatment of IC reactor, the average removal rate of influent COD of high concentration wastewater is 87.88, respectively. Compared with the original treatment process COD removal rate of 57.67% greatly increased greatly reducing the subsequent treatment unit load.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X787

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