Optimizing textile dyeing wastewater for tomato irrigation through physiochemical, plant nutrient uses and pollution load index of irrigated soil

• Published in: Scientific reports 2022-06, Vol.12 (1), p.10088-10088, Article 10088
• Main Authors: Hassan, Jahidul, Rajib, Md. Mijanur Rahman, Sarker, Umakanta, Akter, Masuma, Khan, Md. Noor-E.-Azam, Khandaker, Shahjalal, Khalid, Farhan, Rahman, G. K. M. Mustafizur, Ercisli, Sezai, Muresan, Crina Carmen, Marc, Romina Alina
• Format: Article
• Language: English
• Subjects: 631/449; 704/172; 704/4111; Bleaching; Cadmium; Chlorides; Chromium; Copper; Cultivation; Dyes; Effluent standards; Enzymes; Fruit cultivation; Groundwater; Health risks; Heavy metals; Humanities and Social Sciences; Irrigation; Irrigation water; multidisciplinary; Neutralization; Nutrient loading; Pollution; Pollution index; Pollution load; Principal components analysis; Risk assessment; Science; Science (multidisciplinary); Textile industry wastewaters; Tomatoes; Treated water; Vegetables; Wastewater; Wastewater reuse
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-022-11558-1

Reuse of wastewater for vegetable cultivation is becoming popular in order to augment the inadequate irrigation supplies and meet the growing demands of ground water for agriculture and industries production in different regions of the world. This study was investigated to optimize different stages of textile dyeing wastewater (TDW) for irrigation focusing on their effect on growth, yield and physiochemical attributes of tomato, plant nutrient use, heavy metals enrichment and pollution load of the irrigated soil. Textile wastewater were collected from the seven stages of (second wash after scouring and bleaching T2; enzyme treated water T3; second wash after bath drain T4; neutralization treatment T5; second wash after soaping T6; fixing treatment water T7; mixed effluent T8) of a dyeing process for physiochemical characterization and evaluation their irrigation feasibility for tomato cultivation in compare with the ground water (T1). The pot experiment consists of eight irrigation treatments was laid out following a completely randomized block design with three replications. Results showed the presence of plant nutrients and heavy metals in all the studied samples where T8 (mixed effluent) exceeded the limit of agricultural standard for almost all physiological parameters such as TDS, TSS, EC, BOD, COD affording the highest value. T8 also delivered the highest Cl- and heavy metals like Cd, Ni, Cr followed by T4