CN102849909A - 一种驯化耐碱性废水活性污泥的工艺方法 - Google Patents

一种驯化耐碱性废水活性污泥的工艺方法 Download PDF

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CN102849909A
CN102849909A CN2012103402708A CN201210340270A CN102849909A CN 102849909 A CN102849909 A CN 102849909A CN 2012103402708 A CN2012103402708 A CN 2012103402708A CN 201210340270 A CN201210340270 A CN 201210340270A CN 102849909 A CN102849909 A CN 102849909A
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CN102849909B (zh
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张成巍
宋俊洲
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DALIAN GELANQING WATER ENVIRONMENT ENGINEERING Co Ltd
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Abstract

本发明涉及一种污泥驯化方法,特别是涉及一种驯化耐碱性废水活性污泥的工艺方法。本发明包括PAM脱水处理阶段、污泥洗涤活化阶段、污泥快速增殖阶段、污泥耐碱驯化阶段4个阶段,本发明操作性强,污泥驯化效率高,驯化效果优异,实验证明通过该方法驯化培养20天左右,活性污泥SV30为20-40%,可在pH为9-12的碱性污水中稳定生长并可有效降解水中的有机污染物。

Description

一种驯化耐碱性废水活性污泥的工艺方法
技术领域
本发明涉及一种污泥驯化方法,特别是涉及一种驯化耐碱性废水活性污泥的工艺方法。
背景技术
工业废水中常含有难以用物理法或者化学法处理的有机物,人们常常采用活性污泥法处理可生化性好的工业废水。采用活性污泥法处理此类废水需要污泥驯化过程,使活性污泥中的细菌等微生物适应污水环境。目前出现了许多应对于高盐度环境的活性污泥驯化培养方法,而对于耐碱性废水还未有一个行之有效的活性污泥驯化培养方法。
发明内容
鉴于已有技术存在的缺陷,本发明的目的是要提供一种污泥耐碱性驯化培养的方法,采用本方法驯化培养的活性污泥可在pH在9-12的碱性污水中稳定生长并有效降解水中的有机污染物。
为实现上述目的,本发明所采用的技术解决方案:
一种驯化耐碱性废水活性污泥的工艺方法,包括PAM脱水处理阶段、污泥洗涤活化阶段、污泥快速增殖阶段、污泥耐碱驯化阶段4个阶段,其具体工艺方法如下:
1.  PAM脱水处理阶段:将活性污泥进行PAM脱水处理,脱水时不能加其它药,保证含水量在80%-85%;
2.  污泥洗涤活化阶段:将SBR池中放进有效容积的水,并进行曝气,同时把准备好的干污泥投入到池中,投加量为15-20kg/m3,对污泥进行洗涤活化,全部投入后继续曝气2-4h,曝气结束后静止2h,放掉上清液,如此反复,直至静沉后的上清液清澈透明;
3.  污泥快速增殖阶段:在活化后的SBR池中,每立方米水中加入100g干面粉烧制的面糊,15g尿素,4g磷酸二氢钾,每天曝气2次,每次8h, 增殖时间为3-5天,水温为18-25℃;
4.  污泥耐碱驯化阶段:在污泥增殖后的SBR池中,每立方米水中加入200g干面粉烧制的面糊,30g尿素,8g磷酸二氢钾,同时向SBR池中泵入池有效容积2%的生活污水,以后每天按照2%逐步增加生活污水泵入量,并逐步取消添加面粉糊、尿素和磷酸二氢钾,同时每天泵入一定量的水果罐头厂排出的废弃果渣碱水混合液,泵入量以每天pH增加0.2-0.3计算,直至pH值达到11停止进废碱水,曝气方式每天曝气两次,每次曝气6-8h,溶氧在2mg/L左右,水温18-25℃,时间为15-20天。
所述的活性污泥为食品工厂或发酵工厂污泥。
所述的污泥耐碱驯化阶段需要每天测定COD和SV30,若发现COD去除率或者SV30突然下降,要停止泵入生活污水和废碱水,直至COD去除率回升至50%以上和SV30不再下降。
采用上述方案后,与现有方法相比本发明具有以下有益效果:
本发明操作性强,污泥驯化效率高,驯化效果优异,实验证明通过该方法驯化培养20天左右,活性污泥SV30为20-40%,可在pH为9-12的碱性污水中稳定生长并可有效降解水中的有机污染物。
具体实施方式
下面结合实施例描述本发明技术方案:
实施例1:本发明所述的污泥耐碱性驯化培养方法,活性污泥是经过PAM脱水之后的干污泥,将地下水泵入到SBR池中,连续曝气2h,按照20kg/m3的量投入干污泥,用地下水洗涤污泥,然后按照面粉:尿素:磷酸二氢钾为100:15:4 的比例,每立方米水中加入100g干面粉烧制的面糊,15g尿素,4g磷酸二氢钾,间歇曝气,增殖4天,随后按照原比例,将面粉糊、尿素和磷酸二氢钾的量增加一倍,并泵入少量的生活污水和水果罐头厂排放的有机废碱水,生活污水每天增加2%,废碱水按照每天pH增加0.2-0.3的量泵入,pH达到11后停止加废碱液,每天曝气,溶解氧在2mg/L左右即可,水温维持在18℃,驯化18天,污泥沉降性能良好,SV30在30%左右,出水COD小于50mg/L,镜检发现后生动物轮虫、线虫等,表明污泥驯化成功。
实施例2:本发明所述的污泥耐碱性驯化培养方法,活性污泥是经过PAM脱水之后的干污泥,将地下水泵入到SBR池中,连续曝气2h,按照15kg/m3的量投入干污泥,用地下水洗涤污泥,然后按照面粉:尿素:磷酸二氢钾为100:15:4 的比例,然后按照面粉:尿素:磷酸二氢钾为100:15:4 的比例,每立方米水中加入100g干面粉烧制的面糊,15g尿素,4g磷酸二氢钾,间歇曝气,增殖3天,随后按照原比例,将面粉糊、尿素和磷酸二氢钾的量增加一倍,并泵入少量的生活污水和水果罐头厂排放的有机废碱水,生活污水每天增加2%,废碱水按照每天pH增加0.2-0.3的量泵入,pH达到11后停止加废碱液,每天曝气,溶解氧在2mg/L左右即可,水温维持在20℃,驯化15天,污泥沉降性能良好,SV30在30%左右,出水COD小于50mg/L,镜检发现后生动物轮虫、线虫等,表明污泥驯化成功。
实施例3:本发明所述的污泥耐碱性驯化培养方法,活性污泥是经过PAM脱水之后的干污泥,将地下水泵入到SBR池中,连续曝气2h,按照18kg/m3的量投入干污泥,用地下水洗涤污泥,然后按照面粉:尿素:磷酸二氢钾为100:15:4 的比例,每立方米水中加入100g干面粉烧制的面糊,15g尿素,4g磷酸二氢钾,间歇曝气,增殖5天,随后按照原比例,将面粉糊、尿素和磷酸二氢钾的量增加一倍,并泵入少量的生活污水和水果罐头厂排放的有机废碱水,生活污水每天增加2%,废碱水按照每天pH增加0.2-0.3的量泵入,pH达到11后停止加废碱液,每天曝气,溶解氧在2mg/L左右即可,水温维持在25℃,驯化20天,污泥沉降性能良好,SV30在30%左右,出水COD小于50mg/L,镜检发现后生动物轮虫、线虫等,表明污泥驯化成功。

Claims (3)

1.一种驯化耐碱性废水活性污泥的工艺方法,包括PAM脱水处理阶段、污泥洗涤活化阶段、污泥快速增殖阶段、污泥耐碱驯化阶段4个阶段,其具体工艺方法如下:
(1) PAM脱水处理阶段:将活性污泥进行PAM脱水处理,脱水时不能加其它药,保证含水量在80%-85%;
(2) 污泥洗涤活化阶段:将SBR池中放进有效容积的水,并进行曝气,同时把准备好的干污泥投入到池中,投加量为15-20kg/m3,对污泥进行洗涤活化,全部投入后继续曝气2-4h,曝气结束后静止2h,放掉上清液,如此反复,直至静沉后的上清液清澈透明;
(3) 污泥快速增殖阶段:在活化后的SBR池中,每立方米水中加入100g干面粉烧制的面糊,15g尿素,4g磷酸二氢钾,每天曝气2次,每次8h, 增殖时间为3-5天,水温为18-25℃;
(4) 污泥耐碱驯化阶段:在污泥增殖后的SBR池中,每立方米水中加入200g干面粉烧制的面糊,30g尿素,8g磷酸二氢钾,同时向SBR池中泵入池有效容积2%的生活污水,以后每天按照2%逐步增加生活污水泵入量,并逐步取消添加面粉糊、尿素和磷酸二氢钾,同时每天泵入一定量的水果罐头厂排出的废弃果渣碱水混合液,泵入量以每天pH增加0.2-0.3计算,直至pH值达到11停止进废碱水,曝气方式每天曝气两次,每次曝气6-8h,溶氧在2mg/L左右,水温18-25℃,时间为15-20天。
2.根据权利要求1所述的一种驯化耐碱性废水活性污泥的工艺方法,其特征在于:所述的活性污泥为食品工厂或发酵工厂污泥。
3.根据权利要求1所述的一种驯化耐碱性废水活性污泥的工艺方法,其特征在于:所述的污泥耐碱驯化阶段需要每天测定COD和SV30,若发现COD去除率或者SV30突然下降,要停止泵入生活污水和废碱水,直至COD去除率回升至50%以上和SV30不再下降。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107512769A (zh) * 2017-09-15 2017-12-26 苏州克莱尔环保科技有限公司 耐碱活性污泥驯化的方法
CN108911120A (zh) * 2018-07-18 2018-11-30 山西龙盘微生物科技有限公司 一种降解日化洗涤产品活性污泥的驯化方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03157196A (ja) * 1989-11-15 1991-07-05 Ebara Infilco Co Ltd 有機性汚水の処理方法
CN102050520A (zh) * 2009-10-30 2011-05-11 华君 活性污泥的培养工艺

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03157196A (ja) * 1989-11-15 1991-07-05 Ebara Infilco Co Ltd 有機性汚水の処理方法
CN102050520A (zh) * 2009-10-30 2011-05-11 华君 活性污泥的培养工艺

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107512769A (zh) * 2017-09-15 2017-12-26 苏州克莱尔环保科技有限公司 耐碱活性污泥驯化的方法
CN108911120A (zh) * 2018-07-18 2018-11-30 山西龙盘微生物科技有限公司 一种降解日化洗涤产品活性污泥的驯化方法

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