WO2006089475A1 - Diatomite raffinée modifiée comme agent de traitement pour eaux usées et procédé de fabrication idoine - Google Patents

Diatomite raffinée modifiée comme agent de traitement pour eaux usées et procédé de fabrication idoine Download PDF

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Publication number
WO2006089475A1
WO2006089475A1 PCT/CN2006/000227 CN2006000227W WO2006089475A1 WO 2006089475 A1 WO2006089475 A1 WO 2006089475A1 CN 2006000227 W CN2006000227 W CN 2006000227W WO 2006089475 A1 WO2006089475 A1 WO 2006089475A1
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diatomite
aluminum
lime
minutes
sulfate
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PCT/CN2006/000227
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English (en)
French (fr)
Inventor
Jinhua Lin
Jinlu Wu
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Jinhua Lin
Jinlu Wu
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Priority to CNB2005102001137A priority Critical patent/CN100408161C/zh
Priority to CN200510200113.7 priority
Application filed by Jinhua Lin, Jinlu Wu filed Critical Jinhua Lin
Publication of WO2006089475A1 publication Critical patent/WO2006089475A1/zh

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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/04Clay; Kaolin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0248Compounds of B, Al, Ga, In, Tl
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0274Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
    • B01J20/0281Sulfates of compounds other than those provided for in B01J20/045
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/04Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/041Oxides or hydroxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/14Diatomaceous earth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/3021Milling, crushing or grinding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/3078Thermal treatment, e.g. calcining or pyrolizing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00Aspects relating to sorbent materials
    • B01J2220/40Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/42Materials comprising a mixture of inorganic materials
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents

Description

废水处理用的改性硅藻精土的配方及其制备方法 技术领域

本发明涉及一种废水处理用的改性硅藻精土的配方及其制备方 法。

背景技术

目前,向废水中投加一定的吸附剂和絮凝剂来去除其中的污染物 质是废水处理技术中的一种常用方法。硅藻土由于其自身具有的比表 面积大、 孔隙大、 吸附能力强等优点已被广泛地应用于污水处理中, 但因其本身并不具有絮凝作用,故使其在应用上存在一定的不足。专 利号为 96122377. 4, 名称为 "用硅藻精土处理剂处理污水的工艺及 设备"的发明专利文献中, 提供了一种硅藻精土的成分配方, 其特征 系为采用硅藻精土和一些絮凝剂混合配制成一种污氷处理剂,该处理 剂虽对污水中的有机污染物有一定的去除效果,但经实践证明其仍存 在以下缺点:一是同样去除一定量的污水中的有机污染物,其加量较 大, 从而导致产生大量的污泥, 这样不但使成本加大, 而且还随之增 加了处理大量污泥的费用;二是该混合配制而成的处理剂对污水中的 氨氮等有害物质去除效果很差,从而导致处理后的污水很难达到全面 达标排放的国家要求。

发明内容

本发明的目的在于提供一种以硅藻精土为主要原料, 通过植入 [0H]—或 Al3 Fe2+等基团以增大其吸附性能和絮凝性能的污水处理剂 改性硅藻精土的制备方法。.

本发明所述的一种污水处理剂改性硅藻精土的制备方法, 其特 征在于:

( 1 )所述的改性硅藻精土的配方: 由硅藻精土、 石灰和硫酸铝 (或氯化铝、 氯化铁、硫酸亚铁等无机絮凝剂)组成, 其配比是硅藻 精土: 石灰: 硫酸铝 (或氯化铝、 氯化铁、 硫酸亚铁等无机絮凝剂) 为 5〜6: 3〜4: 1〜1.5。

(2)所述的改性硅藻精土的制备方法:

①将硅藻精土置于容器中,加入少量的水搅拌,调成均勾的糊状;

②继续搅拌, 加入配方量的硫酸铝(或氯化铝、 氯化铁、硫酸亚 铁等无机絮凝剂), 搅匀 20〜40分钟;

③加入配方量的石灰, 搅匀后振荡 20〜40分钟, 于 60〜90°C下 烘干, 后冷却;

④将烘干后的物料粉碎, 100〜200目过筛;

⑤将上述的粉状物置于烧炉中, 于 1〜2 小时内升温至 400〜 700 °C, 后保温 2〜5小时, 冷却、粉碎, 于 200〜300目过筛后备用。

本发明的优点在于:一是与化学絮凝不同, 改性硅藻精土是以硅 藻土微粒作为吸附及絮凝的核心,以其表面的改性涂层作为吸附促进 剂和絮凝架桥结合剂,借助于硅藻土的比表面积大的优势,通过表面 改性可以接枝大量的活性基团附着于表面,强化了改性硅藻土对废水 中污染物质的吸附性能, 同时,絮凝状态的硅藻土可以进一步对废水 中的有机杂质网捕和吸附, 从而进一步增强硅藻土的吸附和絮凝能 力; 二是改性硅藻精土对废水中的氨氮、磷、重金属有极高的去除能 力, 尤其是 pH小于 8、 污染物浓度较低的废水, 其处理效果好, 在 去除一定量污水中的污染物时, 其用量大大减少, 从而节约了成本, 减少了污泥的产生量。

具体实施方式

实施例. ·

本发明所用的硅藻精土粉末系由云南庆中环保公司提供, 该硅藻 精土含有 98%的硅藻量, 具有 40〜220Mm大小的蜂巢结构微孔, 经 分析, 其化学成分含 84. 2%Si02 (其中非结晶 Si02 97. 5%, 结晶 Si02 2. 5%)、 6. 51 %A1203、 5. 23%Fe203和 1. 32%CaO。

. 本发明是这样实现的: 将 90g硅藻精土置于容器中, 加入少量的 水搅拌, 调成均勾的糊状; 继续搅拌, 加入 15g硫酸铝, 搅匀 30分 钟; 再加入 45g石灰,搅匀后振荡 30分钟, 于 80°C下烘干,后冷却; 将烘干后的物料粉碎, 150目过筛; 将上述的粉状物置于烧炉中, 于 2小时内升温至 600°C, 后保温 4小时, 冷却、 粉碎, 于 250目过筛 后备用。

最后所制得的改性硅藻精土成品的组成是硅藻原土: 石灰: 硫酸 铝为 6: 3: 1。

取经一级处理后的城市污水 1000ml,置于混凝反应沉淀器,分别 加入按专利号为 96122377. 4的专利文献所述的方法配制而成的处理 剂 (简称: 对比试剂)和本发明的改性硅藻精土 (简称: 发明试剂) 150mg, 搅拌 20分钟后静置沉淀 120分钟, 取其上清夜分析, 处理效 果如下: 分析 COD BOD ss NH3-N TN TP AS Cd Pb Cu Zn H

项目 (Mg/1)

原水 6.42 147.0 62.0 57.0 35.0 52.0 5.3 0.2 0.7 1.6 10.0 14.0 对比

6.19 98 43 30 . 27 40 3.2 0.11 0.06 0.37 1.8 4.3 试剂

发明

7.08 38 10 20 8 16 0.55 0.01 0.11 0.4 1.0 试剂 本发明为城市的废水处理及其他废水处理提供了一种安全可靠、 效益更高的新方法, 具有较大的推广应用价值。

o

o

Claims

权利要求书
1、 一种废水处理用的改性硅藻精土的配方及其制备方法, 其特征在 于:
( 1 )所述的改性硅藻精土的配方: 由硅藻精土、 石灰和硫酸铝
(或氯化铝、 氯化铁、硫酸亚铁等无机絮凝剂)组成, 其配比是硅藻 精土: 石灰: 硫酸铝 (或氯化铝、 氯化铁、 硫酸亚铁等无机絮凝剂) 为 5〜6: 3〜4: 1〜1.5。
(2)所述的改性硅藻精土的制备方法:
①将硅藻精土置于容器中,加入少量的水搅拌,调成均匀的糊状;
②继续搅拌, 加入配方量的硫酸铝(或氯化铝、 氯化铁、硫酸亚 铁等无机絮凝剂), 搅匀 20〜40分钟;
③加入配方量的石灰, 搅匀后振荡 20〜40分钟, 于 60〜90°C下 烘干, 后冷却;
④将烘干后的物料粉碎, 100〜200目过筛;
⑤将上述的粉状物置于烧炉中, 于 1〜2 小时内升温至 400〜 700°C, 后保温 2〜5小时, 冷却、粉碎, 于 200〜300目过筛后备用。
PCT/CN2006/000227 2005-02-28 2006-02-16 Diatomite raffinée modifiée comme agent de traitement pour eaux usées et procédé de fabrication idoine WO2006089475A1 (fr)

Priority Applications (2)

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CNB2005102001137A CN100408161C (zh) 2005-02-28 2005-02-28 废水处理用的改性硅藻精土的配方及其制备方法
CN200510200113.7 2005-02-28

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Cited By (5)

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MD20110099A2 (ro) * 2011-03-18 2012-09-30 Институт Прикладной Физики Академии Наук Молдовы Material de filtrare-sorbţie pentru purificarea apei şi procedeu de obţinere a acestuia
US20120267315A1 (en) * 2011-04-20 2012-10-25 Soane Energy, Llc Treatment of wastewater
CN102863059A (zh) * 2012-09-07 2013-01-09 上海同济环境工程科技有限公司 一种强化生物去除废水中氨氮功能的添加剂及使用方法
CN103145211A (zh) * 2013-04-07 2013-06-12 桂林理工大学 氧化锰改性硅藻土从电解锌漂洗废水中回收Zn2+的方法
WO2017082821A1 (en) * 2015-11-11 2017-05-18 Kytolink Tech Pte. Ltd. Process and system for treating waste water

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CN103030188A (zh) * 2013-01-02 2013-04-10 桂林理工大学 氧化锰改性硅藻土从电解锌漂洗废水中回收Pb2+的方法
CN105130011B (zh) * 2015-09-07 2017-12-22 深圳市德庆科技有限公司 硅藻土污水处理剂、制备方法及其技术应用
CN105521683A (zh) * 2015-12-24 2016-04-27 淄博永辰环境影响评价有限公司 一种工业废气的处理方法
CN105536718A (zh) * 2015-12-24 2016-05-04 淄博永辰环境影响评价有限公司 一种废气处理的复合吸附材料
CN105478086A (zh) * 2015-12-24 2016-04-13 淄博永辰环境影响评价有限公司 一种工业废水重金属离子的复合吸附材料的制备方法
CN105561926A (zh) * 2015-12-24 2016-05-11 淄博永辰环境影响评价有限公司 一种废气处理的复合吸附材料的制备方法
RU168903U1 (ru) * 2016-08-30 2017-02-27 Общество с ограниченной ответственностью "Воронежпеностекло" Установка для получения гранулированного фильтрующего материала из диатомита
CN107502007B (zh) * 2017-09-26 2020-04-07 重庆华亚家私有限公司 一种改性硅藻土水性环保油漆及其制备方法
CN110078322A (zh) * 2018-01-24 2019-08-02 上海交通大学 油气田废弃钻井泥浆的处理方法

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD20110099A2 (ro) * 2011-03-18 2012-09-30 Институт Прикладной Физики Академии Наук Молдовы Material de filtrare-sorbţie pentru purificarea apei şi procedeu de obţinere a acestuia
US20120267315A1 (en) * 2011-04-20 2012-10-25 Soane Energy, Llc Treatment of wastewater
CN102863059A (zh) * 2012-09-07 2013-01-09 上海同济环境工程科技有限公司 一种强化生物去除废水中氨氮功能的添加剂及使用方法
CN103145211A (zh) * 2013-04-07 2013-06-12 桂林理工大学 氧化锰改性硅藻土从电解锌漂洗废水中回收Zn2+的方法
WO2017082821A1 (en) * 2015-11-11 2017-05-18 Kytolink Tech Pte. Ltd. Process and system for treating waste water

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CN1673109A (zh) 2005-09-28

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