CN101254959B - 膨润土污水处理方法 - Google Patents

膨润土污水处理方法 Download PDF

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CN101254959B
CN101254959B CN2008100609353A CN200810060935A CN101254959B CN 101254959 B CN101254959 B CN 101254959B CN 2008100609353 A CN2008100609353 A CN 2008100609353A CN 200810060935 A CN200810060935 A CN 200810060935A CN 101254959 B CN101254959 B CN 101254959B
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CN101254959A (zh
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王春伟
单小松
汤静芳
姚珍莲
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Zhejiang Walter New Material Co ltd
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Abstract

一种膨润土污水处理方法是将钙基或钠基或酸性膨润土粉碎成101-600目,倒入待处理污水中,搅拌,再将24%的十八烷基三甲基氯化铵,倒入污水中,搅拌,再倒入絮凝剂,搅拌,沉降,进行水土分离、微生物处理、达标排放;污水与投入的任何一种膨润土的重量比为1000∶0.1~1000∶1.0,膨润土用量与十八烷基三甲基氯化铵的用量比为1∶1~1.5∶1,膨润土与絮凝剂的用量比为1∶1.5~4∶1。本方法可用于宾馆、油田污水的处理,具有处理成本低,应用面广、污泥沉积较少、不影响后续的微生物处理等优点。

Description

膨润土污水处理方法
技术领域
本发明涉及用膨润土与表面活性剂、絮凝剂共同作用,吸附与凝聚结合处理污水的方法。
背景技术
CN1462726公开了浙江大学的“有机膨润土合成--废水处理一体化方法”专利技术,利用有机膨润土作吸附剂,用溴化十六烷基三甲铵作表面活性剂,按一定比例投入污水中进行净化处理。该专利选用的溴化十六烷基三甲铵价高,而且沉降速度较慢、沉积的污泥较多,其溴离子对微生物的生存与繁衍不利,对后续的生物净化处理造成负面效果。
发明内容
本发明的目的是针对现有技术的上述不足,提供一种沉降速度较快的、沉积污泥较少的、成本低、对后续的微生物净化无负面作用的膨润土污水处理方法。
上述目的可通过如下措施实现:本膨润土污水处理方法是将钙基或钠基或酸性膨润土粉碎成101-600目,将上述三种膨润土中的任一种倒入待处理污水中,搅拌5-20分钟,再将作为表面活性剂的浓度为24%的十八烷基三甲基氯化铵,倒入待处理的污水中,快速搅拌5-20分钟,再倒入作为絮凝剂的聚丙烯酰胺、聚合季胺盐、聚合无机铝盐中至少一种,搅拌5分钟,沉降2-20分钟,再进行污泥分离、或微生物处理、达标排放诸后续工作;污水与投入的上述膨润土中任一种的重量比为1000∶0.1~1000∶1.0,任何一种膨润土用量与十八烷基三甲基氯化铵的用量重量比为1∶1~1.5∶1,任何一种膨润土与絮凝剂的用量重量比为1∶1.5~4∶1。
所说的待处理污水为宾馆污水、油田污水,它们的主要有机污物是粪便的发酵分解物、微生物及其残留物、浴水污物、厨房及餐饮剩余物、原油、油田化学品、表面活性剂。
本发明的有益效果是:污水处理的成本低,吸附与絮凝能力强,沉降时间较短,污泥较少。
具体实施方式
本发明下面结合实施例作进一步详述:下表为每吨污水净化处理时所需的膨润土、表面活性剂、絮凝剂原料及公斤数配比表。
Figure DEST_PATH_GA20174445200810060935301D00011
现以宾馆污水为例阐述其处理方法:先以污水池容积测算出污水总量,再对照表中实施例1宾馆污水的原料及公斤数配比:以每吨污水投入钙基(或钠基或酸性)膨润土0.2kg搅拌15分钟,再投入浓度为24%的十八烷基三甲基氯化铵0.18kg,搅拌20分钟,再投入浓度为1%的聚丙烯酰胺0.2kg和聚合氯化铝0.1kg,搅拌15分钟,沉降30分钟,上层清液用水泵抽出,下层沉降物用离心机或板框压滤机脱水,如需进一步净化,还可用微生物净化处理,污泥可制砖、作肥泥。
其余实施例2的油田污水,可根据表中对应的原料与公斤数按前述实施例1的宾馆污水同样的方法处理。
需说明的是表中的各原料投入量只是以每吨污水计算的数量,整池污水各种原料的投入量应以污水总重的吨数乘以各原料公斤数之积来计算。因不同宾馆、油田的有机物污染程度差别很大,各原料的投放量与待处理污水之比值,在实际操作时会突破区间值。因此实施例所列的只是常用的比值,其它处于端值的实施例因能理解而不再一一举例。
本发明所用的原料如聚丙烯酰胺的浓度为1%、十八烷基三甲基氯化铵的浓度为24%,实施例中的投放量是指该浓度含量条件下应投入污水中的量,如浓度值不同,再计算相应的投放量,这属简单换算,不赘述。絮凝剂中的固态物质如聚合无机铝盐中可选用的聚合氯化铝、聚合硫酸铝,用工业纯级。
现用几个代表性指标来说明处理效果:宾馆污水化学耗氧量(COD)小于70mg/L,油脂含量小于15mg/L,油田污水的COD<100mg/L,油脂含量<100mg/L。
现有技术中采用用溴化十六烷基三甲铵作表面活性剂,价格也远比本申请用的十八烷基三甲基氯化铵高,而且溴离子的存在有杀灭微生物的作用,不利后续的微生物净化处理。

Claims (2)

1.一种膨润土污水处理方法,其特征是将钙基或钠基或酸性膨润土粉碎成101-600目,将上述三种膨润土中的任一种倒入待处理污水中,搅拌5-20分钟,再将作为表面活性剂的浓度为24%的十八烷基三甲基氯化铵,倒入待处理的污水中,快速搅拌5-20分钟,再倒入作为絮凝剂的聚丙烯酰胺、聚合季胺盐、聚合无机铝盐中至少一种,搅拌5分钟,沉降2-20分钟,再进行污泥分离或进一步微生物处理;污水与投入的上述膨润土中任一种的重量比为1000∶0.1~1000∶1.0,任何一种膨润土用量与十八烷基三甲基氯化铵的用量重量比为1∶1~1.5∶1,任何一种膨润土与絮凝剂的用量重量比为1∶1.5~4∶1。
2.如权利要求1所述的膨润土污水处理方法,其特征是所说的待处理污水为宾馆污水、油田污水,它们的主要有机污物是粪便的发酵分解物、微生物及其残留物、浴水污物、厨房及餐饮剩余物、原油、油田化学品、表面活性剂。
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CN103269983A (zh) * 2010-12-24 2013-08-28 荷兰联合利华有限公司 水净化组合物和方法
CN102583951B (zh) * 2012-02-21 2013-06-12 南京大学 一种酸浸出法铝循环混凝污泥资源化处理方法
CN103240051A (zh) * 2012-03-22 2013-08-14 武汉科梦环境工程有限公司 一种复合阳离子改性膨润土及废水处理方法
CN103230773A (zh) * 2012-07-23 2013-08-07 浙江桃花源环保工程有限公司 一种污染场地的地下水处理方法
CN103663652B (zh) * 2013-12-11 2015-04-08 山东华亚环保科技有限公司 一种污水处理剂的制备方法
CN104445546B (zh) * 2014-11-05 2017-01-25 阳原县仁恒精细粘土有限责任公司 一种用于处理涂装废水的混凝剂及其生产工艺
CN105366745B (zh) * 2015-12-24 2018-03-13 南宁学院 一种高效染色废水处理剂
CN105481140B (zh) * 2015-12-24 2018-09-25 南宁学院 一种高效染色废水处理方法
CN105923786A (zh) * 2016-05-07 2016-09-07 国家海洋局北海环境监测中心 一种高效修复原油污染海水的方法
CN105819577A (zh) * 2016-05-30 2016-08-03 青岛海之源智能技术有限公司 一种可快速环保修复海面溢油污染的方法
CN105948434A (zh) * 2016-06-29 2016-09-21 南安泰达工业设计有限公司 一种苯污染污泥处理剂及其制备方法
CN106085455A (zh) * 2016-07-01 2016-11-09 苏加强 一种氯乙烯污染污泥处理剂及其制备方法
CN110291911A (zh) * 2018-03-22 2019-10-01 西南科技大学 一种利用餐厨废油防治水土流失的方法
CN109110874A (zh) * 2018-09-26 2019-01-01 深圳市裕农科技股份有限公司 一种废水处理剂及其制备方法与应用

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