CN1544350A - 造纸中水脱色技术 - Google Patents

造纸中水脱色技术 Download PDF

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Publication number
CN1544350A
CN1544350A CNA2003101056735A CN200310105673A CN1544350A CN 1544350 A CN1544350 A CN 1544350A CN A2003101056735 A CNA2003101056735 A CN A2003101056735A CN 200310105673 A CN200310105673 A CN 200310105673A CN 1544350 A CN1544350 A CN 1544350A
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China
Prior art keywords
water
technology
paper making
decolouration
white clay
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CN100357191C (zh
Inventor
杨雪琴
李建华
朱万亮
马厚悦
庄耀礼
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HUATAI GROUP CO Ltd
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HUATAI GROUP CO Ltd
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  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
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Abstract

本发明公开了一种利用白泥和炉渣进行的造纸中水脱色技术。其技术方案是利用造纸工艺碱回收后产生的白泥，加入中水中，调节中水的pH值，同时利用白泥起到引进“晶核”，在加入絮凝剂后所产生的絮聚颗粒增大，增加絮聚颗粒的快速沉淀，达到泥水的良好分离，并且污泥的滤水性也比较好；加入炉渣，利用炉渣的多孔、表面积大的特性，再对以上清夜中的残余有色物质进行吸附过滤处理，再次脱色。本发明的技术简单，以废治废，降低污水治理成本。脱色后的水质达到：CODcr70－80mg/L，色度为8倍，可用于黑浆的洗涤，替代清水的用量。

Description

造纸中水脱色技术
一、技术领域：本发明公开了一种利用白泥和炉渣进行的造纸中水脱色技术。
二、背景技术：烧碱法麦草制浆过程中产生的中段废水，经活性污泥法处理后，尚存在颜色较深的弊端，制约了水的回收利用。
三、发明内容：本发明的目的就是针对现有技术中存在的问题，提供一种利用造纸碱回收后的白泥和炉渣进行造纸中水脱色技术。
其技术方案是利用造纸工艺碱回收后产生的白泥，加入中水中，调节中水的PH值，同时利用白泥起到引进“晶核”，在加入絮凝剂后所产生的絮聚颗粒增大，增加絮聚颗粒的快速沉淀，达到泥水的良好分离，并且污泥的滤水性也比较好；加入炉渣，利用炉渣的多孔、表面积大的特性，再对以上清夜中的残余有色物质进行吸附过滤处理，再次脱色。
本发明的技术简单，以废治废，降低污水治理成本。脱色后的水质达到：CODcr70-80mg/L，色度为8倍，可用于黑浆的洗涤，替代清水的用量。
四、附图说明：无
五、具体实施例：
利用造纸工艺碱回收后产生的白泥(其主要成分是碳酸钙)，加入中水中，调节中水的PH值，同时利用白泥起到引进“晶核”，在加入絮凝剂(主要成分硫酸铝)后所产生的絮聚颗粒增大，增加絮聚颗粒的快速沉淀，达到泥水的良好分离，并且污泥的滤水性也比较好；加入炉渣，利用炉渣的多孔、表面积大的特性，再对以上清夜中的残余有色物质进行吸附过滤处理，再次脱色。

Claims (1)

1、造纸中水脱色技术，其特征是：利用造纸工艺碱回收后产生的白泥，加入中水中，调节中水的PH值，然后加入絮凝剂；加入炉渣，再次脱色。
CNB2003101056735A 2003-11-19 2003-11-19 造纸中段废水脱色方法 Expired - Fee Related CN100357191C (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2003101056735A CN100357191C (zh) 2003-11-19 2003-11-19 造纸中段废水脱色方法

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CNB2003101056735A CN100357191C (zh) 2003-11-19 2003-11-19 造纸中段废水脱色方法

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CN1544350A true CN1544350A (zh) 2004-11-10
CN100357191C CN100357191C (zh) 2007-12-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102249437A (zh) * 2010-05-19 2011-11-23 新疆博湖苇业股份有限公司 一种造纸中段废水处理方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01151990A (ja) * 1987-12-07 1989-06-14 Oji Paper Co Ltd 紙・パルプ廃水の凝集沈澱処理方法
JPH1133563A (ja) * 1997-07-16 1999-02-09 Ebara Corp 故紙パルプ排水の処理方法
US6929942B2 (en) * 1999-08-10 2005-08-16 Council Of Scientific And Industrial Research Process for the treatment of industrial effluents using marine algae to produce potable wafer
US6589427B2 (en) * 2001-02-28 2003-07-08 Council Of Scientific & Industrial Research Process for treatment of mixture of spent wash from distillery and black liquor from pulp and paper industry
CN1159236C (zh) * 2001-12-11 2004-07-28 广西贵糖（集团）股份有限公司 以废治废处理造纸中段废水的方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102249437A (zh) * 2010-05-19 2011-11-23 新疆博湖苇业股份有限公司 一种造纸中段废水处理方法

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