Contrasting effects of untreated textile wastewater onto the soil available nitrogen-phosphorus and enzymatic activities in aridisol

Abstract

Water shortage and soil qualitative degradation are significant environmental problems in arid and semi-arid regions of the world. The increasing demand for water in agriculture and industry has resulted in the emergence of wastewater use as an alternative in these areas. Textile wastewater is produced in surplus amounts which poses threat to the environment as well as associated flora and fauna. A 60-day incubation study was performed to assess the effects of untreated textile wastewater at 0, 25, 50, 75, and 100% dilution levels on the physico-chemical and some microbial and enzymatic properties of an aridisol soil. The addition of textile wastewater provoked a significant change in soil pH and electrical conductivity and soil dehydrogenase and urease activities compared to the distilled-water treated control soil. Moreover, compared to the control treatment, soil phosphomonoesterase activity was significantly increased from 25 to 75% application rates, but decreased at 100% textile wastewater application rate. Total and available soil N contents increased significantly in response to application of textile wastewater. Despite significant increases in the soil total P contents after the addition of textile wastewater, soil available P content decreased with increasing concentration of wastewater. Changes in soil nutrient contents and related enzymatic activities suggested a dynamic match between substrate availability and soil N and P contents. Aridisols have high fixation and low P availability, application of textile wastewater to such soils should be considered only after careful assessment.

Impact assessment of textile effluent on health and microbiota of agricultural soil in Bhagwanpur (Uttarakhand), India

“…Reduced urease activity could be corroborated with lower values of total nitrogen content in the soil of all selected sites despite receiving discharge from the textile mill [60]. There is a strong relationship between urease and dehydrogenase enzymatic activities as evident from the correlation coefficient obtained (0.673, p ≤ 0.01), in the present investigation (Table 5) which is in accordance with literature report [43].…”

“…The bioavailability of metals from soil greatly depends on EC as increase in EC has been linked to enhancement of metal solubility [42]. Analogous results were reported by Arif et al [43] studying effects of untreated textile wastewater on aridisol soil. In terms of texture, the percentage coarse sand was more in the affected site as compared to control, whereas percentage of fine sand was more in the control site soil than in the test site.…”

Effect of Sewage Irrigation on the CT-Measured Soil Pore Characteristics of a Clay Farmland in Northern China

“…Due to increasing interest in the use of sewage for irrigation and in light of the possible effects of sewage on agricultural soils and crop production, the influence of effluent irrigation on the physical, chemical, and biological properties of soil have been well documented [ 6 , 7 , 8 ]. Previous studies have shown that sewage irrigation is frequently accompanied by increases in macro- and micro-nutrients and heavy metals in the soil [ 9 , 10 , 11 , 12 ] in addition to changes in soil microbial functional diversity and enzymatic activity [ 13 , 14 , 15 ]. Sewage irrigation can also increase the risk of crop and groundwater pollution [ 16 , 17 ] and reduce soil quality [ 18 ] and the infiltration rate [ 8 , 19 ].…”

Untitled

“…Chemical characterization of the effluent from various industrial units have been carried out by other workers (Arif et al 2016;Biswas et al 2018;. Their reports conferred consistent results for quality parameters of wastewaters.…”