Analysis of arsenic contamination in the groundwater of India - Bangladesh and Nepal with a special focus on the stabilisation of arsenic-laden sludge from arsenic filters

摘要

The present paper starts by presenting an overview of the arsenic contamination in the groundwater in different parts of India. The paper goes on to present standards regarding arsenic in drinking water and then proceeds to give a state-wise status of Arsenic contamination. Adverse effects of arsenic on the health of human beings, accumulation of arsenic in the food chain and ill-effects of using arsenic-laden water for irrigation are elaborated upon in the paper. The paper proceeds to explore technological options to deliver arsenic-free water by various ways and means. Providing medical relief to affected people is also included. Methods for safe disposal of arsenic-laden sludge from arsenic filters and various issues related to the same are also key aspects of the paper.