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- Title
SUITABILITY OF DIFFERENT TYPES OF TEXTILE DYEING WASTEWATER FOR IRRIGATION OF VEGETABLES.
- Authors
KHANDAKER, SHAHJALAL; GANESH CHANDRA SAHA; HASSAN, JAHIDUL; ANAMUL HOQUE BHUIYAN; MOHAMMED ZIA UDDIN KAMAL
- Abstract
A pot experiment was conducted on Stem Amaranth and Indian Spinach irrigated by groundwater (control) and seven different types of textile dyeing wastewater to investigate the accumulation of selected heavy metals like copper, zinc, chromium, and nickel in the different parts of these vegetables. The different types of dyeing wastewater were analyzed for heavy metals and compared with irrigation water quality standard. The concentrations of heavy metals in wastewater were well below than the irrigation water quality standard. The concentration of Cu and Zn were within the safe limit in the different parts of these vegetables recommended by Food and Agriculture Organization (FAO). However, the concentration of Ni in both vegetables was found higher than the recommended safe limit of Indian standard for plants irrigated with enzyme treated wastewater (D3). Moreover, the concentration of Cr was higher for plants irrigated with second wash after bath drop (D4) and mixed wastewater (D8) than Indian Standard. Therefore, the results of this research suggest that four types (D2, D5, D6 and D7) of wastewater in cotton fabric and yarn dyeing process could be reused without treatment in irrigation for the cultivation of Stem Amaranth and Indian Spinach considering heavy metals accumulation. In consequence, factory owner can save the wastewater treatment cost and as a result the dependency on groundwater for irrigation will be reduced that in turn, will ultimately save the environment. However, additional studies focusing on organic contaminant need to be carried out for checking suitability of using wastewater for irrigation.
- Subjects
TEXTILE cleaning &; dyeing industry; INDUSTRIAL wastes; VEGETABLE irrigation; BIOACCUMULATION in plants; ANALYSIS of heavy metals; WASTEWATER treatment; AGRICULTURE
- Publication
Journal of Applied Phytotechnology in Environmental Sanitation, 2014, Vol 30, Issue 2, p55
- ISSN
2088-6586
- Publication type
Article