ABSTRACT

The rapid generation rate of solid waste is due to the increasing population and industrialization. Nowadays, solid waste has been a major concerning problem in handling and disposal thus adsorption treatment process has been introduced which is an effective and low-cost method in removing organic and inorganic compounds from leachates such as chemical oxygen demand (COD) and ammoniacal nitrogen (NH₃-N). A most commonly adsorbent used for the removal of organic and inorganic compounds is activated carbon (AC), yet the main disadvantage is being too expensive in cost. Many researchers tried to use low-cost adsorbent waste materials, such as peat soil, limestone etc. This review article reveals a list of low-cost adsorbent and their capacity of adsorption for the removal of COD and NH₃-N. Furthermore, the preparation of these low-cost adsorbents as well as their removal efficiencies, relative cost, and limitation are discussed. The most efficient, cost-effective, and environment-friendly adsorbent can be used for the removal of COD and NH₃-N thus can be provided for commercial usage or water treatment plant.

Implications: The concentration of organic constituents (COD) and ammonia nitrogen in stabilized landfill leachate has significant strong influences of human health and environmental. This review article shows the list of low-cost adsorbent (i.e., Activated carbon, Peat soil, Zeolite, Limestone, and cockle shell and their capacity of adsorption for the removal of COD and ammonia nitrogen. This would be greatly applicable in future research era as well as conventionally minimizing high-cost materials use and thereby lowering the operating cost of leachate wastewater treatment.

摘要

固体废物的快速产生是由于人口和工业化的增加。如今，固体废物已成为处理和处置中的主要问题，因此引入了吸附处理工艺，这是一种从渗滤液中去除化学需氧量（COD）和氨氮等有机和无机化合物的有效且低成本的方法。 NH ₃ -N)。用于去除有机和无机化合物的最常用吸附剂是活性炭 (AC)，但主要缺点是成本太高。许多研究人员尝试使用低成本的吸附剂废料，如泥炭土、石灰石等。这篇综述文章揭示了一系列低成本吸附剂及其去除 COD 和 NH _{3的吸附能力}-N。此外，讨论了这些低成本吸附剂的制备以及它们的去除效率、相对成本和局限性。最有效、最经济、最环保的吸附剂可用于COD和NH ₃ -N的去除，因此可提供给商业用途或水处理厂。

启示：稳定的垃圾渗滤液中有机成分（COD）和氨氮的浓度对人类健康和环境具有显着的强烈影响。这篇综述文章展示了低成本吸附剂（即活性炭、泥炭土、沸石、石灰石和鸟蛤壳）的清单以及它们对去除 COD 和氨氮的吸附能力。这将在未来的研究时代具有很大的应用价值以及传统上最大限度地减少高成本材料的使用，从而降低渗滤液废水处理的运营成本。