Herbicides are widely used in farmlands worldwide. However, after their application on farmlands, they accumulate in high amounts in continental and marine waters. Herbicides are endocrine disruptors, and are known to cause toxicity, carcinogenicity and mutagenicity. Besides, they also spoil the taste and odor of water bodies. To prevent these effects, it is necessary to perform an in-depth study on various herbicide removal methods. This review discusses the various methods of herbicide removal from aqueous body, using a commonly used herbicide (2,4-dichlorophenoxyacetic acid) as a representative chemical. This paper includes a systematic tabulated review of all reported removal methods with important parameters and their mechanism. Adsorption, biological degradation, electrochemical treatment, Fenton degradation, oxidation, ozonation and photocatalytic degradation are investigated and compared for removal of 2,4-D. The advantages and disadvantages and the factors influencing selection of the aforementioned processes are discussed.

除草剂在全世界的农田中广泛使用。但是，在农田上施用后，它们在大陆和海水中大量积累。除草剂是内分泌干扰物，已知会引起毒性，致癌性和致突变性。此外，它们还会破坏水体的味道和气味。为了防止这些影响，有必要对各种除草剂去除方法进行深入研究。这篇综述讨论了使用常用的除草剂（2,4-二氯苯氧基乙酸）作为代表化学品从水体中去除除草剂的各种方法。本文包括对所有报告的去除方法以及重要参数及其机理的系统列表。吸附，生物降解，电化学处理，芬顿降解，氧化，研究了臭氧化和光催化降解，并比较了去除2,4-D的方法。讨论了上述方法的优缺点和影响选择的因素。