Leachability Of Arsenic From Wastes Of Arsenic Removal Units Using Modified Toxicity Characteristic Leaching Procedure

Leachability of Arsenic from Wastes of Arsenic Removal Units Using Modified Toxicity Characteristic Leaching Procedure

The present study evaluated the leaching of arsenic from sludge/waste of seven SONO filters that were operated in Rajarampur of Chapai Nawabganj district. For this, Toxicity Characteristic Leaching Procedure (TCLP) test was performed. To understand actual leaching of arsenic, a Simulated Natural Column (SNC) that is comparable to natural mature landfill was devised. Total arsenic concentration ...

Badruzzaman: Leaching of Arsenic from Arsenic Removal Wastes

Arsenic in groundwater was first detected in Bangladesh at Chapai Nawabgonj district in 1993. Since then arsenic contamination problem has been reported from almost every parts of the country. It is estimated that approximately 27% of the wells are contaminated with levels above 50ppb, the current drinking water standard for arsenic in Bangladesh (Kinninburg, D. G., et al., 2001). It is also es...

Fate of Arsenic in Wastes Generated From Arsenic Removal Units

Arsenic Removal Using Iron-modified Zeolites

We determined the ability of two iron-and-zeolite materials to remove arsenic from groundwater. The first material is composed of iron, surfactant-modified zeolite, and hard silicate foam, and is known as Surfactant-Modified Zeolite/ Zero-Valent Iron (SMZ/ZVI). The second material is a new formulation that consists of iron-modified zeolite (IMZ). We prepared eight different prototypes of IMZ fo...

Arsenic Removal from Aqueous Solution Using Titanium Dioxide Nanoparticles (Anatase)

Background and Objectives: Groundwater sources, as strategic sources of water supply, are of particular importance for human beings. Arsenic is a toxic and carcinogenic contaminant that has been reported to be widely found in groundwater sources. In recent years, adsorption property of nanoparticles has been used to remove arsenic. The present study was performed with the aim of assessing the a...