从不同的固体废物中出Cr,Cu,Ni和Zn:添加吸附剂和使用不同的液的效果
Marzieh Taghipour1, Mohsen Jalali1
1Department of Soil Science, College of Agriculture, Bu-Ali Sina University, Hamedan, Iran.
Waste management (New York, N.Y.)
|July 28, 2023
概括
这项研究表明,在工业固体废物 (ISW) 中添加本托尼特和MgO可显著减少 (Cr) 等有毒元素的浸出. 这些材料充当有效的吸附剂,减轻废物处理带来的环境风险.
科学领域:
- 环境科学 环境科学
- 地质化学 地质化学
- 材料科学 材料科学 材料科学
背景情况:
- 工业固体废物 (ISWs) 可以出潜在的有毒元素 (PTEs),造成环境风险.
- 了解PTE漏对于有效的废物管理至关重要.
- 像陶工厂废弃物 (CFW),石材切割废弃物 (SCW) 和皮革工厂废弃物 (LFW) 等特定的ISW表现出不同的PTE漏特性.
研究的目的:
- 调查本托尼特和氧化 (MgO) 对来自ISW的PTE (Cr,Cu,Ni,Zn) 浸出的影响.
- 为了评估这些添加剂在不同水溶液中的有效性.
- 分析废水中 (Cr) 的物种化以及添加剂在减轻有毒形式中的作用.
主要方法:
- 在使用不同的溶液 (CaCl2,酸,酸) 的各种ISW上进行了漏实验.
- 石和MgO被添加到ISW中,以评估它们对PTE漏的影响.
- 进行了废水物种化分析,重点关注Cr (III) 和Cr (VI) 形式.
主要成果:
- ,和的化百分比高达11.2%,而Cr在某些ISW中高达26.7%.
- 添加本托尼特和MgO显然减少了PTE的浸出.
- 氧在减少SFW废水中的Cr (VI) 形成方面特别有效.
结论:
- 石和MgO有效地减少了来自ISW的PTE的浸出.
- 石显示出作为一种低成本吸附剂的潜力,可最大限度地减少Cr和其他PTE出.
- 这些发现支持使用这些材料来实现更安全的工业废物管理和环境保护.
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