Advanced Journal of Environmental Science and Technology

Advanced Journal of Environmental Science and Technology ISSN 2756-3251 Vol. 13 (3), pp.001-005,September, 2022. © International Scholars Journals

Full Length Research Paper

Textile effluent biodegradation potentials of textile effluent-adapted and non-adapted bacteria

Olukanni O. D.*, Osuntoki, A. A. and Gbenle, G. O.

Department of Biochemistry, College of Medicine, University of Lagos. PMB 12003, Lagos Nigeria

Accepted 29 August, 2022

Abstract

Environmental pollution has been recognized as one of the major problems of the modern world. The increasing demand for water and the dwindling supply has made the treatment and reuse of industrial effluents an attractive option. Textile effluents are of concern because they colour the drains and ultimately the water bodies. They also diminish the water quality. The ability of microorganisms to degrade and metabolize a wide variety of compounds has been recognized and exploited in various biotreatment processes. This study investigated the potential of bacteria isolated from textile industries wastewater and drains (textile effluent adapted bacteria) and isolates from a municipal landfill (effluent non- adapted bacteria). We discovered effluent adapted strains of Acinetobacter, Bacillus and Legionella with potentials for colour removal and strains of Acinetobacter, Bacillus and Pseudomonas with chemical oxygen demand (COD) removal activities. Only strains of Bacillus with potentials for use in colour and COD removal were isolated from the landfill. Plasmid screening did not reveal the presence of plasmids in the isolates. Thus the involvement of extra-chromosomal genes is not suggested. In conclusion, as a preliminary step in the development of textile effluent biotreatment using indigenous microbes, we have discovered some strains with potency to decolourize and/or remove COD.

Key words: Textile effluent, dyes, biodegradation, decolourization, COD removal.

Advanced Journal of Environmental Science and Technology ISSN 2756-3251 Vol. 13 (8), pp.001-006,August, 2022. © International Scholars Journals

Full Length Research Paper

Treatment of textile sludge using anaerobic technology

ASIA, I. O.^1*, OLADOJA, N. A. ² and BAMUZA-PEMU, E. E.¹

¹Department of Chemistry, Ambrose Alli University, P. M. B. 14 Ekpoma, Edo State Nigeria.

²Department of Chemistry, Adekunle Ajasin University Akugba, Ondo State Nigeria.

Accepted 30 July, 2022

Abstract

Composite samples of sludge obtained from a textile factory were characterized for their pollution characteristics using some parameters of interest; pH, solids concentration, oxygen demand, nitrogen, phosphorus, total bacteria counts etc. The analysis revealed that the sludge has high pollution potentials and therefore needed treatment before disposal to the environment. The ratio of chemical oxygen demand, (COD) to that of biochemical oxygen demand, (BOD) was 3.08; meaning the sludge has high substrate biodegradability. Samples were subjected to mesophilic anaerobic treatment at the temperature of 35±2°C. The method achieved solids reduction of 61% total solids, 68% settleable solids and 51% volatile solids and a total bacteria reduction of 99.99%. The reduction in BOD and COD were 89% each. Nitrate and phosphate were found to reduce substantially thereby preventing eutrophication due to undesirable nutrients. The anaerobic treatment was found to have an additional benefit of producing biogas (methane and carbon (IV) oxide) which if harnessed may be used as fuel.

Key words: Textilee, mesophilic anaerobic treatment, pollution, digestion, eutrphication, sludge.