HEALTH EFFECT, PREPAREDNESS & MITIGATION OF EXPOSURE TO AMMONIA FROM DOMESTIC AND INDUSTRIAL SOURCE

Abstract

In this paper exposure route, pathway in body, excretion route, its health effect and its health effect and some preparedness & mitigation of ammonia were tried to compile. It is found that source of exposure of ammonia are industrial, domestic and agriculture. Domestic level of exposure is below the limit, so the major sources of exposure are industrial and agriculture. The smell of ammonia is very irritating and specific so any leak can be easily detected and mitigatory action can be taken immediately.
This paper was presented in National Symposium on Awareness, Preparedness & Mitigation of Exposure to Domestic and Industrial Chemicals, APMEDIC-2007, Organised by National Disaster Management Authority, Gov. of India & AIIMS, New Delhi – 30th - 31st Aug. 2007 at AIIMS, New Delhi. The full paper can supplied on request.

Economical Method of Wastewater Treatment of Textile Industry for Recycling

Abstract

In present study maize cob was used as adsorbent for colour removal from homogeneous system of textile dye and textile effluent as heterogeneous system. Adsorption kinetics were studied using the parameters such as dye concentration, adsorbent dose, agitation time and pH. Adsorption followed first order expression. The equilibrium adsorption data followed Freundlich isotherm. Maize Cob was found efficient in both homogeneous as well as heterogeneous system. Adsorption was nearly quantitative at pH 2.0. Around 99.36 % colour was removed from 10 ppm dye solution by using 600 mg/lt of maize cob at pH 2.0. The findings of elemental studies by XRF- scan and SEM studies were correlated with the colour removal capacity of maize cob.
In heterogeneous system also acidic pH was found more effective in colour removal. The BOD, oil & grease and TSS were found below detectable limit, while COD and TDS were found 24.3 mg/lt and 152 mg/lt respectively at 150 mg/lt dose of maize cob.

This paper was presented in National Conference of Environment Conservation – 1st – 3rd Sep. 2006 at BIT – Pillani, Rajasthan, India. Full paper can be made available on request.

Recycling of Red Mud for Textile Wastewater Treatment

Abstract

Waste red mud, an industrial byproduct, generated during the processing of bauxite ore, is recycled for the adsorption of forosol blue, a textile dye from the aqueous solution and textile wastewater treatment. Adsorption kinetics were studied using the parameters such as dye concentration, adsorbent dose, agitation time and pH. Adsorption followed first order expression. Red mud was found efficient in both homogeneous as well as heterogeneous system. Adsorption was nearly quantitative at pH 2.0. Effect of pH and adsorption studies suggests that the mechanism of adsorption is mostly ion exchange.

This paper was presented in International Conference of chemistry and Environment – Dec 2005. The full paper can be made available on request.