Assessment of well-water quality for drinking purpose--a case study in Nari area, Nagpur District, Maharashtra (India).

The water from 20 wells of Nari area was assessed for different quality parameters. The nitrate (NO(-)3) concentration ranged from 57 to 80 ppm which is above the BIS limit while nitrite (NO(-02) concentration was within the BIS limit of 0.02 ppm. The pH of the water samples varied from 7.3 to 8.2. The concentrations of micronutrient cations, namely Zn, Fe, Cu and Mn, were below the toxic level in all the samples but some of the samples of the water had high and infinite growth of E. coli, Coliform bacteria, Pseudomonas aerugilosa, Yeast and molds count makes the well water of poor quality for drinking purpose.

Changes in soil properties due to irrigation with paper industry wastewater.

The effect of irrigation by the effluent of paper industry versus well water on properties of soils in three seasons was studied in Nagpur district, Maharashtra. The effluent had high total dissolved salts and biological oxygen demand than well water. pH, EC and availability of N, P, K, Zn, Cu, Fe, Mn, Cd, Co, Cr, Ni, Pb, particularly in surface layer of paper industry effluent irrigated soil at different seasons found to increase compared to well water irrigated soils, but heavy metals (non-essential nutrients) were within the permissible limits.

Effect of sugar factory effluent on some physico-chemical properties of soils--a case study.

The effect of irrigation by sugar factory effluent (spentwash) and the well water from adjoining area has been studied in Wardha district, Maharashtra. The effluent had high TDS (422-608 mgL(-1)), COD (1152-17680 mgL(-1)) and BOD(380-650 mgL(-1)) than well water (TDS 240 mgL(-1), COD 3.8 mgL(-1) and BOD 1.2 mgL(-1)). There found some nutrients, viz. N, P, K, Zn, Cu, Fe, Mn in surface layer of soil in different seasons. Heavy metals (Cd, Co, Cr, Ni, Pb) were found to be within the permissible limits.