Therefore the protection of water resources requires effective micro-pollutants removal technologies that allow their removal in a fast and low-cost manner. In the last one decade, it has been proven that the adsorption is the most widely used and established technique for the removal of different organic micro-pollutants from wastewater due to its simplicity and ease of operation over other physical and chemical technologies like photo-fenton, sonochemical, electrochemical degradation, membrane separation and photocatalytic degradation. Thus, in the past few years, several significant attempts have been taken by different researchers in order to develop miscellaneous new adsorbents from diverse origin of low cost and abundant materials. Among these adsorbents, activated carbon (AC) is one of the most used and effective adsorbent due to its unique surface structure and porosity. Therefore, a wide variety of agricultural biomasses have been introduced for the preparation of AC by chemical or physical activation in recent years including walnut shells, apricot stones, corncob, date stones, almond shell, waste tea, bamboo, olive stones, rice husk and bagasse. However, there are still some technical challenges (costs, equipments) that impede this technology towards large scale implementation.