基于工业固体废弃物控制磷污染的研究进展与金属浸出问题的应对措施

Advances of phosphorus pollution control based on industrial solid waste and counter measures for metal leaching problems

磷是导致水体富营养化的主要驱动因素,由于工业和农业活动导致过量磷酸盐排放到水体中,富营养化现象已成为全球性的环境问题。工业固体废弃物含有易与磷酸盐结合的氧化态/离子态金属(Al、Fe、Ca、La和Ce等),利用工业固体废弃物控制磷污染是一种实现循环经济的策略。本文总结了5种工业固体废弃物(给水处理残渣(DWTR)、粉煤灰(CFA)、赤泥(RM)、碱性氧气转炉炉渣(BOF-炉渣)和流化催化裂解废催化剂(SFCC-催化剂)控制磷污染的研究进展,主要包括材料的吸附性能、改性和制粒方法、影响因素,以及金属浸出问题和应对措施。

Phosphorus is the main driver of eutrophic water bodies.Eutrophication has become a global environmental problem due to excessive phosphate discharged into water by industrial and agricultural activities.Industrial solid waste contains oxidized/ionic metals(Al,Fe,Ca,La and Ce,etc.)that are easily combined with phosphate.Using industrial solid waste to control phosphorus pollution is a strategy to achieve circular economy.The research progress of five industrial solid wastes(drinking water treatment residue(DWTR),coal fly ash(CFA),red mud(RM),basic oxygen furnace slag(BOF-slag)and spent fluid catalytic cracking catalyst(SFCC-catalyst))in controlling phosphorus pollution were summarized in this paper,including adsorption performance,modification and granulation methods,influencing factors,metal leaching problems and counter measures.