Post-irrigation impact of domestic sewage effluent on composition of soils, crops and ground water—A case study

Yadav, Rashmi; Goyal, Bhawana; Sharma, Raman; Dubey, Shantanu Kumar; Minhas, P.S.

doi:10.1016/s0160-4120(02)00070-3

Cited by 279 publications

(161 citation statements)

References 3 publications

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“…A 20-years long-term experimentation on the use of sewage WW for irrigating crops revealed decrease in soil pH by 0.4 units over initial pH value [54]. Similar results showed of decrease in soil pH with WW irrigation in different soils of varying agro-climatic conditions have also been reported [52,53]. Decrease in soil pH with distillery effluents [38], industrial effluents [55] and steel industry effluents [42] has also been documented.…”

Section: Soil Phsupporting

confidence: 54%

“…However, in Vertisols of Mexico City there was an increased in soil OC content by 2.5-fold after 80-years of SW irrigation over GW irrigated soil [60]. After 36-years of domestic sewage effluent irrigation, significant improvement in the soil OM fro m 1.24-1.78%, especially down to a distance of one Km along the disposal channel, has been reported [53]. Even after 8-weeks of pharmaceutical effluent application @ 75, 000 L ha -1 to Nigerian soils, there was an increase in soil OC fro m 1.00 to 1.08% (Table 5) [30].…”

Section: Soil Organic Carbonmentioning

confidence: 98%

“…The increased in soil pH (Table 3) has been referred e xclusively to the high content of Ca 2+ and Mg 2+ of pharmaceutical effluents applied to the soil [30]. On the contrary, there are studies [52][53][54] which confirms the decrease in surface soil pH with WW irrigation to soils. A 20-years long-term experimentation on the use of sewage WW for irrigating crops revealed decrease in soil pH by 0.4 units over initial pH value [54].…”

Section: Soil Phmentioning

confidence: 99%

“…About 7.8-fold increase in soil organic matter (OM ) content (fro m 0.52-4.07%) with distillery effluent application in soils of Nepal has been reported [38]. Sewage WW irrigation for 50-60 years in soils of Calcutta (India) has exh ibited an increase in soil OC fro m 0.19 to 0.37% [49] and fro m 1.24 to 1.73% after 25 years (Table 7) in soils of Kurukshetra (Haryana, India) [53]. Large additions of OM from sewage WW and anaerobic conditions developed due to heavy loading of OM had reduced OC (Table 3 and 4) deco mposition and have resulted in build-up of soil OC [12].…”

Section: Soil Organic Carbonmentioning

confidence: 99%

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Waste Water Use in Crop Production: A Review

Khurana¹,

Singh²

2012

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Paucity of quality fresh water for agriculture has made waste water (WW) application a popular option.Available data on chemical co mposition of different waste water, their effect on soil fert ility, soil heavy-metal content, crop yield and quality parameters and maximu m permissible limits (MPL) of different International environ ment protection agencies and governments of different countries has been summarized. Chemical composition of WW varied remarkably with respect to their heavy-metal content, pH, electrical conductivity (EC), biolog ical o xidation demand (BOD), chemical oxidation demand (COD), alkalinity and hardness. Field application of all types of waste water significantly increases soil OC percentage, soil EC, cation exchange capacity (CEC), total and DTPA-ext ractable heavy-meta l/ mic ro-nutrient content, available macro -nutrient (N, P and K) content with significant decreases in calciu m carbonate content of surface soil. However, high content of nitrogen, phosphorus and potassium strengthens its high fertigation/ manural value for field crops. Significantly higher heavy-metal accumu lation in soils irrigated with WW than ground water has been observed in surface layer than the lower depths of soil profile. Since crop genotypes and even crop cultivars within genotypes respond differently to waste water irrigation, their selection becomes mo re important under such situations. More importantly, carbon sequestration through WW irrigation could sustain long-term soil fert ility. Periodic monitoring of chemical composition of waste water, soil and crop produce is however, suggested for safe and long term use of waste water.

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Section: Soil Phsupporting

confidence: 54%

Section: Soil Organic Carbonmentioning

confidence: 98%

Section: Soil Phmentioning

confidence: 99%

Section: Soil Organic Carbonmentioning

confidence: 99%

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Waste Water Use in Crop Production: A Review

Khurana¹,

Singh²

2012

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“…Wastewater carries appreciable amounts of trace toxic metals (Pescod, 1992;Yadav et al, 2002) which often leads to degradation of soil health and contamination of food chain mainly through the vegetable grown on such soils (Rattan et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Health Risk Assessment of Heavy Metals for Population via Consumption of Vegetables Collected from Khassa River, Kirkuk City, Northern Iraq

Ismail¹,

Rashid²

2017

Int.J.Curr.Res.Aca.Rev.

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Article InfoThe present study was carried out to investigate heavy metal accumulation inthirtythree soil samples from different depths and six vegetable samples and to assess the human health risks of vegetable consumption. Four vegetable types (cress, leek, chard and celery) were irrigated with wastewater cultivated on farmland contaminated with heavy metals (Cu, Pb, Zn, and As) from Khassa river of Kirkukcity. The order of heavy metal concentration was found in Zn > Cu>Pb>As in vegetable samples and Zn > Cu>Pb>As was observed in soil samples. The health risk assessment methods include target hazard quotient (THQ) and hazard quotient (HQ) were used to assess the human health risks posed by heavy metals through vegetable consumption.

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