从脏的农场水中去除,通过激活的无氧消化衍生的生物炭
Chen Zhang1, Shuzhuang Sun1, Shaojun Xu2,3
1School of Chemistry and Chemical Engineering, Queens University Belfast, BelfastBT7 1NN, United Kingdom.
Industrial & engineering chemistry research
|November 29, 2023
概括
无氧消化生物炭有效地从脏的灌水中去除. 这项研究优化了生物炭的激活,并证明了其高吸附能力,为农业和工业中管理提供了可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 无氧消化剂的有效管理对于废物回收利用和无氧消化可持续性至关重要.
- 从废水中去除是农业和工业的重大环境挑战.
研究的目的:
- 研究从无氧消化物中提取的生物炭用于从脏灌水中去除的使用.
- 通过蒸汽和KOH激活来优化生物炭特性,以增强吸附.
- 分析通过优化生物炭去除的吸附动力学和热力学.
主要方法:
- 从无氧消化剂生产生物炭.
- 通过蒸汽和KOH激活来优化生物炭纹理特性.
- 批量吸附实验,以评估去除效率.
- 吸附动力学和热力学参数的分析.
主要成果:
- 优化生物炭 (AD-N2) 显示出8.99毫克g-1.1的显著吸附能力.
- 吸附遵循埃洛维奇方程,表明复杂的吸附机制 (R2 = 0.95).
- 发现吸附过程是内热的 (ΔH0 = 17.93 kJ mol-1) 和自发的 (ΔS = 96.24 J mol-1 K-1).
结论:
- 从无氧消化物中提取的活性生物炭是一种有前途的吸收剂,可以从污染水中去除.
- 该研究提供了对吸附机制和去除的热力学优势的见解.
- 这种方法为管理工业和农业环境中的污染提供了可持续的解决方案.
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