Conversion of waste biomass to highly porous biochar for tricresyl phosphate removal: Adsorption performance study and exhausted adsorbent re-utilization

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2026-06-01 Epub Date: 2026-01-03 DOI:10.1016/j.jtice.2025.106616

Yi Xie , Jiali Yu , Mingjin Cai , Lefang Chen , Yongkui Zhang , Yabo Wang , Bi Chen

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引用次数: 0

Abstract

Background

Organophosphorus esters (OPEs) are hazardous pollutants frequently detected in aquatic environments at concentrations ranging from ng L^‒1 to μg L^‒1. It has been widely detected in samples from wastewater treatment plants and in surface waters of lakes and rivers, exhibiting reproductive toxicity, neurotoxicity, cardiotoxicity, and hepatotoxicity to organisms. Adsorption is regarded as a promising technology to treat low concentration pollutants in water, which requires highly efficient and cost-effective adsorbents. Adsorbents prepared from waste biomass are attracting increasing attention from researchers.

Methods

Waste biomass of baijiu distillers’ grains (BDGs) was applied as the precursor to prepare biochar in the presence of potassium salt as activator. The biochar materials were evaluated as adsorbents for tricresyl phosphate (TCP) removal from water. Both batch and continuous adsorption performances were investigated.

Significant findings

Superior adsorption performances towards TCP were achieved, including a large adsorption capacity (653.6 mg g^‒1), good adaptability to solution pH and background water quality, and 5% and 95% breakthrough time of 3.67 h and 17.53 h in column adsorption process. The exhausted adsorbent could be converted to metal phosphide loaded carbon catalyst for advanced oxidation reaction, providing another choice for waste adsorbent disposal and re-utilization of P resource in OPEs.

Abstract Image

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废生物质转化为高孔生物炭去除磷酸三甲酰基：吸附性能研究和废吸附剂再利用

有机磷酯（OPEs）是水生环境中经常检测到的有害污染物，浓度从ng L-1到μg L-1不等。它已在污水处理厂和湖泊、河流的地表水样本中广泛检测到，对生物体表现出生殖毒性、神经毒性、心脏毒性和肝毒性。吸附是一种很有前途的处理水中低浓度污染物的技术，它需要高效、经济的吸附剂。利用废弃生物质制备吸附剂越来越受到研究人员的关注。方法以白酒糟废生物质为前驱体，以钾盐为活化剂制备生物炭。研究了生物炭材料作为吸附水中磷酸三甲酰基（TCP）的性能。考察了间歇吸附和连续吸附性能。结果表明：该工艺对TCP具有良好的吸附性能，吸附量大（653.6 mg g-1），对溶液pH和本底水质具有良好的适应性，柱式吸附过程中5%和95%的突破时间分别为3.67 h和17.53 h。废吸附剂可转化为负载金属磷化物的碳催化剂进行深度氧化反应，为OPEs废吸附剂的处理和P资源的再利用提供了另一种选择。

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来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.