JIANG Shan,FU Kun-ming,SU Xue-ying,et al.Application Prospects of Adsorption-Biodegradation (AB) Process Based on Mainstream ANAMMOX[J].China Water & Wastewater,2018,34(22):25-30.
基于主流厭氧氨氧化的AB工藝應(yīng)用前景
- Title:
- Application Prospects of Adsorption-Biodegradation (AB) Process Based on Mainstream ANAMMOX
- 文章編號(hào):
- 1000-4602(2018)22-0025-06
- 分類(lèi)號(hào):
- TU992.3
- 文獻(xiàn)標(biāo)志碼:
- B
- 摘要:
- 基于未來(lái)可能的主流厭氧氨氧化應(yīng)用,總結(jié)與分析了AB工藝的A段中微生物的研究現(xiàn)狀、凈化機(jī)理以及A段中存在的胞外聚合物(EPS)的作用與影響。A段對(duì)污水中碳源的回收,存在著吸附、絮凝、沉降以及生物作用等多種過(guò)程,其中,增加進(jìn)水SS、升高EPS含量、提高pH值、加入二價(jià)或三價(jià)陽(yáng)離子、降低多糖含量等方法均可提高污泥的絮凝、沉降、吸附性能。在強(qiáng)化A段捕捉有機(jī)物的研究中發(fā)現(xiàn),投加化學(xué)絮凝劑是較為可行的強(qiáng)化方法,可以將BOD5去除率提高到60%～70%。想要進(jìn)一步降低BOD5/N比值還需要在B段進(jìn)一步降低有機(jī)物的值,可在新提出的兩種工藝的短程硝化階段或是有機(jī)物氧化階段通過(guò)調(diào)節(jié)DO值,氧化分解有機(jī)物使得ANAMMOX菌具有良好活性,以實(shí)現(xiàn)主流ANAMMOX工藝。
- Abstract:
- Based on the possible application of anaerobic ammonia oxidation in the main treatment process in future, this paper summarized and analyzed the research status of microorganisms and purification mechanism in A-stage of AB process, as well as the effect of the extracellular polymer substances(EPS)in the A-stage. There were many processes such as adsorption, flocculation, sedimentation and biodegradation in the A-stage. Among them, it could be found that increasing influent SS, the EPS content and pH, adding two or trivalent cationic flocculants, and reducing the content of polysaccharidecould improve the adsorption, flocculation sedimentation performance of sludge. In the study on strengthening the performance to capture organic matter in A-stage, it was found that the addition of chemical flocculants was a feasible method to increase the removal rate of BOD5 to 60%-70%. To further reduce the BOD5/N ratio, it was necessary to further reduce the value of organic matter in B-stage, which could be realized by adjusting the DO value in the short-term nitrification stage of the two new processes or in the oxidative stage of organic matter. The oxidative decomposition organic compounds makes ANAMMOX bacteria had good activity to achieve the mainstream ANAMMOX process.
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備注/Memo
基金項(xiàng)目: 北京市教育委員會(huì)科技發(fā)展計(jì)劃項(xiàng)目(SQKM201710016006); 北京建筑大學(xué)市屬高校基本科研業(yè)務(wù)費(fèi)專(zhuān)項(xiàng)資金資助項(xiàng)目(X18214)
通信作者: 付昆明 E-mail:fukunming@163.com
作者簡(jiǎn)介:姜姍(1993- ), 女, 北京人, 碩士研究生, 研究方向?yàn)樗幚砑夹g(shù)。 E-mail:klarolines@163.com
收稿日期:2018-04-28
