Biowastes are waste materials of organic/biological origin. The aim of this paper was to discuss the recent breakthroughs in the thermochemical conversion of biowastes to green adsorbents for pollutant uptake. The review also discussed how thermochemical conversion impacts adsorbent cost considerations after their use in water decontamination. The nature of the biowaste feedstock and process temperature are important in controlling the biochar properties, especially those relevant to pollutant removal. Considering that biowaste tends to have wide compositional variations with each batch (especially from home and municipal waste), it would be difficult to fully tune properties based on composition. Biochar can have good cost performance when applied for pollutant removal since its adsorptive capacity tends to be high for a wide range of pollutants. The simplicity and efficiency of thermochemical processes ensure they will continue to be a reliable choice for researchers in adsorbent synthesis.

生物废物是有机/生物来源的废物。本文的目的是讨论生物废物热化学转化为绿色吸附剂以吸收污染物的最新突破。该评论还讨论了热化学转化如何影响吸附剂在水净化中使用后的成本考虑因素。生物废物原料的性质和工艺温度对于控制生物炭特性非常重要，尤其是与污染物去除相关的特性。考虑到每批生物垃圾（尤其是家庭垃圾和城市垃圾）的成分往往存在很大差异，因此很难根据成分完全调整特性。由于生物炭对多种污染物的吸附能力较高，因此在应用于污染物去除时具有良好的性价比。热化学过程的简单性和效率确保它们将继续成为吸附剂合成研究人员的可靠选择。