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在乌拉圭的纸厂WWTP的化学除工艺的评估

S Bentancur¹, I Dutra², P Pereyra²

¹Department of Environmental Engineering and Water Technology, IHE-DELFT Institute for Water Education, Westvest 7, 2611 AX, Delft, the Netherlands; Department of Engineering, UCU Universidad Católica del Uruguay, Av. 8 de Octubre 2738, CP 11600, Montevideo, Uruguay.

Journal of environmental management

|July 1, 2025

概括

仅仅通过生物处理就不足以去除纸厂废水中的. 化学降水,特别是用硫酸或氧化降水后降水,有效降低含量,以满足严格的排放标准.

科学领域:

环境工程环境工程
水处理技术水处理技术
工业废水管理工业废水管理

背景情况:

纸厂的废水通常含有高度的.
仅仅是生物去除是有限的,因为生物质的需求较低.
有效的管理对于工业废水合规性至关重要.

研究的目的:

评估纸厂废水中生物和化学的去除.
为了比较化学除 (CPR) 的共同沉和后沉方法.
评估不同凝固剂 (FeCl3,Al2SO4) 3,CaOH) 2的疗效.

主要方法:

实验室规模的测序批量反应器 (SBR) 用于生物处理.
在SBR操作过程中添加凝固剂进行共同沉.
在SBR废水上使用瓶式试验进行降水后测试.
在不同度下测试三种凝固剂.

主要成果:

生物处理显示了最小的去除.
共同沉实现了79-82%的清除,但在排放限制方面遇到了困难.
用Al2(SO4) 3或Ca(OH) 2进行降水后,产生了最低的总 (TP) 和可溶度 (分别为<0.5和<0.2 mgP L-1).

结论:

化学沉对于有效地去除纸厂废水中的是必不可少的.
降水后提供了在满足严格的排放限制方面卓越的性能.
优化化学处理策略对于纸和造纸行业的环境合规性至关重要.

关键词:

化学除法化学除法共同降水是指共同降水.工业废水处理工业废水处理降水后的降水情况纸厂的纸厂厂家是什么意思

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Factors Affecting Solubility

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