Effect of Textile Dyeing Wastewater on Growth, Yield and Nutritional Qualities of Indian Spinach
Journal Title: American Journal of Agricultural Science, Engineering, and Technology - Year 2015, Vol 2, Issue 6
Abstract
The present study was conducted on Indian Spinach irrigated by groundwater (control) and seven different types of textile dyeing wastewater to assess the suitability for further utilization in vegetables cultivation. The impact of dyeing wastewater was assessed regarding the growth, yield and nutritional qualities of Indian Spinach. The different types of dyeing wastewater were analyzed for a wide range of parameters and compared with irrigation water quality standard. The results revealed that pH, biochemical oxygen demand, dissolved oxygen, chloride and color of the mixed wastewater sample (D8) were exceeded the irrigation water quality standards of Department of Environment, Bangladesh while these properties of other wastewater samples were almost within allowable limits. The mixed wastewater was not suitable for irrigation considering the intensity of pollution and yield of Indian Spinach. The average yield of Indian Spinach irrigated with five less polluted wastewater (2 nd wash after scouring and bleaching, enzyme treated wastewater, 2nd wash after dyeing, neutralized wastewater and fixing wastewater) was 58.54 g which was about 28 percent lower than the groundwater irrigated Indian Spinach. However, number of leaves, plant canopy area, stem diameter and plant height did not varied significantly with groundwater treated plant. Nutritional qualities of Indian Spinach irrigated with wastewater were similar to those irrigated by groundwater. The concentration of ascorbic acid in Indian Spinach irrigated with wastewater was found almost identical with groundwater irrigated plants. Chlorophyll a and chlorophyll b of different wastewater treated plants varied from 0.17 to 0.29 mg and 0.05 to 0.08 mg per gm among the treatments respectively while groundwater irrigated Indian Spinach contained in these range. ò carotene in wastewater irrigated Indian Spinach was also higher than the groundwater irrigated plant. From overall assessment, selected wastewater of a dyeing factory could be directly reutilized in irrigation purpose of vegetables cultivation.
Authors and Affiliations
Shahjalal Khandaker,Jahidul Hassan,Ganesh Chandara Saha,Mohammad Zia Uddin Kamal,Anamul Hoque Bhuiyan,
Keywords
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