Preparation of poly-ferric aluminium silica sulfate coagulant from industrial wastes

ZHANG Kaishi; ZENG Fengchun

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Preparation of poly-ferric aluminium silica sulfate coagulant from industrial wastes

更新时间：2025-12-10

- Preparation of poly-ferric aluminium silica sulfate coagulant from industrial wastes
- CIESC Journal Issue 9, Pages: 2361-2365(2008)
- 作者机构：
  
  1. 宜宾学院化学化工系
  2. 四川理工学院化学系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 September 2008，
  
  Published：05 September 2008
- 稿件说明：
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ZHANG Kaishi, ZENG Fengchun. Preparation of poly-ferric aluminium silica sulfate coagulant from industrial wastes[J]. CIESC Journal, 2008, (9): 2361-2365.
DOI：

ZHANG Kaishi, ZENG Fengchun. Preparation of poly-ferric aluminium silica sulfate coagulant from industrial wastes[J]. CIESC Journal, 2008, (9): 2361-2365. DOI：

摘要

以粉煤灰、废铁屑、废硫酸等工业废弃物为原料，在浸取阶段（碱溶和酸溶）温度90～95℃、液固比（体积比）3.0、时间3h和制备阶段硅酸聚合pH2.0、硫酸总量与硫酸亚铁摩尔比0.37、Si/（Fe＋Al）摩尔比0.10的条件下，制备出了新型无机高分子混凝剂-聚合硫酸铁铝硅（PFASS），并对其混凝性能、晶形貌像和形态分布进行了研究。实验结果表明：所制PFASS聚合度高、分子链长、最优形态Feb和Alb含量大，对工业废水浊度去除率达99％以上、COD去除率达93％以上，明显优于市售聚合硫酸铁（PFS）、聚合氯化铝（PAC）和聚铝铁（PFAC）混凝剂的处理效果。

Abstract

A new type of inorganic polymer coagulant

poly-ferric aluminum silica sulfate（PFASS）

was prepared by using fly ash

crap iron and waste sulfuric acid as raw materials under the conditions of reaction temperature 95—90℃

reaction time 3h

liquid solid ratio 3.0 in the immersing stage

and poly-silica acid pH 2

H2SO4/FeSO4 molar ratio 0.37

Si/（Fe＋Al） molar ratio 0.10 in the preparing stage.The coagulation properties

morphology and species distributions of PFASS were studied with transmission electron microscope (TEM)

Ferron method and coagulation experiment.The results showed that the polymerization degree

molecular chain length and best species content of PFASS were obviously higher

the coagulation properties of PFASS were much better than those of commercial polymerized ferric sulfate (PFS)

polymerized aluminum chloride (PAC) and poly-ferric aluminum chloride (PFAC).

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