Vermicomposting of Textile Industries’ Dyeing Sludge by Using Eisenia foetida
Abstract:Surat City in India is famous for textile and dyeing industries which generate textile sludge in huge quantity. Textile sludge contains harmful chemicals which are poisonous and carcinogenic. The safe disposal and reuse of textile dyeing sludge are challenging for owner of textile industries and government of the state. The aim of present study was the vermicomposting of textile industries dyeing sludge with cow dung and Eisenia foetida as earthworm spices. The vermicompost reactor of 0.3 m3 capacity was used for vermicomposting. Textile dyeing sludge was mixed with cow dung in different proportion, i.e., 0:100 (C1), 10:90 (C2), 20:80 (C3), 30:70 (C4). Vermicomposting duration was 120 days. All the combinations of the feed mixture, the pH was increased to a range 7.45-7.78, percentage of total organic carbon was decreased to a range of 31-33.3%, total nitrogen was decreased to a range of 1.15-1.32%, total phosphorus was increased in the range of 6.2-7.9 (g/kg).
 S. Gajalakshmi, E. Ramasamy, S. Abbasi, “Potential of two epigeic and two anecic earthworm species in vermicomposting of water hyacinth,” Bioresource technology, vol. 76, 2001, pp. 177-181.
 S. Bansal, K. Kapoor, "Vermicomposting of crop residues and cattle dung with Eisenia foetida,” Bioresour Technol, vol. 73, 2000, pp. 95-98.
 R. K. Sinha, S. Herat, S. Agarwal, R. Asadi, E. Carretero, “Vermiculture and waste management: study of action of earthworms Elsinia foetida, Eudrilus euginae and Perionyx excavatus on biodegradation of some community wastes in India and Australia,” The Environmentalist, vol. 22, 2002, pp. 261-268.
 C. Elvira, L. Sampedro, E. Benitez, R. Nogales, “Vermicomposting of sludges from paper mill and dairy industries with Eisenia andrei: a pilot-scale study,” Bioresour Technol, vol. 63, 1998, pp. 205-11.
 P. Kaushik, V. Garg, “Vermicomposting of mixed solid textile mill sludge and cow dung with the epigeic earthworm Eisenia foetida,” Bioresour Technol, vol. 90, 2003, pp. 311-316.
 F. M. Rashad, W. D. Saleh, M. A. Moselhy, “Bioconversion of rice straw and certain agro-industrial wastes to amendments for organic farming systems: 1. Composting, quality, stability and maturity indices,” Bioresour Technol, vol. 101, 2010, pp. 5952-5960.
 P. Sangwan, C. P. Kaushik, V. K. Garg, “Vermiconversion of industrial sludge for recycling the nutrients,” Bioresour Technol, vol. 99, 2008, pp. 8699-8704. Epub 2008/05/21.
 A. Yadav, V. K. Garg, “Feasibility of nutrient recovery from industrial sludge by vermicomposting technology,” J Hazard Mater, vol. 168, 2009, pp. 262-268.
 K. A. Wani, Mamta, R. J. Rao, “Bioconversion of garden waste, kitchen waste and cow dung into value-added products using earthworm Eisenia fetida,” Saudi journal of biological sciences, vol. 20, 2013, pp. 149-54. Epub 2013/08/21.
 K. D. Yadav, V. Tare, M. M. Ahammed, “Vermicomposting of source-separated human faeces for nutrient recycling,” Waste manage, vol. 30, 2010, pp. 0-6.
 A. S. Kalamdhad, Y. K. Singh, M. Ali, M. Khwairakpam, A. Kazmi, “Rotary drum composting of vegetable waste and tree leaves,” Bioresour Technol, vol. 100, 2009, pp. 6442-6450.
 V. S. Varma, A. Kalamdhad, “Evolution of chemical and biological characterization during thermophilic composting of vegetable waste using rotary drum composter,” I. J.of Environ Sci and Technol, 2014, pp. 1-10.
 M. Bustamante, C. Paredes, J. Morales, A. Mayoral, R. Moral, “Study of the composting process of winery and distillery wastes using multivariate techniques,” Bioresour Technol, vol. 100, 2009, pp. 4766-4772.
 J. Singh, A. S. Kalamdhad, “Effect of lime on speciation of heavy metals during composting of water hyacinth,” Front Environ Sci Eng, vol. 10, 2016, pp. 93-102.
 J. Singh, A. S. Kalamdhad, “Concentration and speciation of heavy metals during water hyacinth composting,” Bioresour Technol, vol. 124, 2012, pp. 169-79.