Recycling of wastewaters of textile dyeing industries using advanced treatment technology and cost analysis—Case studies

Ranganathan, K.; Karunagaran, K.; Sharma, Diwakar

doi:10.1016/j.resconrec.2006.06.004

Cited by 134 publications

(47 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Textile and dyeing factories in the world pose major environmental threats because of large amount of water and dyes involved in manufacturing process (Ranganathan et al 2007;El-Rahim et al 2008). Textile wastewater contains substantial pollution loads in terms of pH, temperature, color, chemical oxygen demand (COD), biochemical oxygen demand (BOD), total suspended solid (TSS), total dissolved solids (TDS), electrical conductivity (EC) and heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Health risk assessment of textile effluent reuses as irrigation water in leafy vegetable Basella alba

Shammi

Kashem

Rahman

et al. 2016

Int J Recycl Org Waste Agricult

View full text Add to dashboard Cite

Purpose The aim of this research was to assess the health risk of textile wastewater reuse as irrigation water on leafy vegetable (Basella alba) by comparing variable growth rate in different ration of wastewater and freshwater irrigation and assess their soil-to-plant transfer factor (TF) and health risk index (HRI). Methods Pot experiments were laid out with five treatments including control with three replications with different irrigation schemes with textile wastewater collected from the untreated point source. The irrigation scheme was, 100 % groundwater as control with four treatments as 75 % groundwater: 25 % wastewater, 50 % groundwater: 50 % wastewater, 25 % groundwater: 75 % wastewater and 100 % wastewater. Results Soil-to-plant TF in different treatments including control were in the order of Pb (1.0-1.7) [ Cu (1.3-1.5) [ Cd (0.8-1.0) [ Zn (0.1-1.1). TF values of Pb and Cu in the range from 1 to 1.7 indicating their accumulation in B. alba plants and their potential health risk by dietary exposure. The HRI for individual metal as well as cumulative HRI of the metals was less than unity (0.33) which indicated the consumption of the vegetables was considered to be safe for one harvest. Conclusion Over many seasons of irrigation with wastewater, level of salinity and heavy metals can accumulate on the agriculture land and their long term consumption may link to a chronic health risk. Hence, consumption of these vegetables on regular basis should be avoided.

show abstract

Section: Introductionmentioning

confidence: 99%

Health risk assessment of textile effluent reuses as irrigation water in leafy vegetable Basella alba

Shammi

Kashem

Rahman

et al. 2016

Int J Recycl Org Waste Agricult

View full text Add to dashboard Cite

show abstract

“…Therefore, among the processes applied in the textile industry, dyeing process wastewater should be dealt with seriously. The districts Coimbatore, Tirupur and Karur are largely polluted (Ranganathan et al, 2007) with discharged toxic wastes from dyeing and bleaching units. The problem of disposal of textile wastes is likely to become serious in the days ahead and there is possibility of affecting the groundwater in the study area.…”

Section: Introductionmentioning

confidence: 99%

Biodecolorization and Bioremediation of Denim Industrial Wastewater by Adapted Bacterial Consortium Immobilized on Inert Polyurethane Foam (PUF) Matrix: A First Approach with Biobarrier Model

Rajendran¹,

Prabhavathi²,

Karthiksundaram³

et al. 2015

Pol J Microbiol

View full text Add to dashboard Cite

A b s t r a c tThe present experiments were studied on bioremediation of denim industry wastewater by using polyurethane foam (PU foam) immobilized bacterial cells. About 30 indigenous adapted bacterial strains were isolated from denim textile effluent out of which only four isolates were found to be efficient against crude indigo carmine degradation using broth decolorization method. The selected bacterial strains were identified as Actinomyces sp., (PK07), Pseudomonas sp., (PK18), Stenotrophomonas sp., (PK23) and Staphylococcus sp., (PK28) based on microscopic and biochemical characteristics. The bacterial immobilized cells have the highest number of viable cells (PK07, PK18, PK23 and PK28 appeared to be 1 × 10 8 , 1 × 10 9 , 1 × 10 6 and 1 × 10 7 CFU/ml respectively) and maximum attachment efficiency of 92% on PU foam. The complete degradation using a consortium of PU foam immobilized cells was achieved at pH 6, 27°C, 100% of substrate concentration and allowed to develop biofilm for one day (1.5% W/V). In SEM analysis, it was found that immobilization of bacterial cells using PUF stably maintained the production of various extracellular enzymes at levels higher than achieved with suspended forms. Finally, isatin and anthranilic acid were found to be degradation products by NMR and TLC. The decolorized dye was not toxic to monkey kidney cell (HBL 100) at a concentration of 50 µl and 95% of cell viability was retained. A mathematical model that describes bacterial transport with biodegradation involves a set of coupled reaction equations with non-standard numerical approach based on the time step scheme. K e y w o r d s: biobarrier model, bioflim, bioremediation, cytotoxicity test, polyurethane foam, secondary metabolites

show abstract

“…They have inhibiting effect on the process of photosynthesis, thus affecting the aquatic ecosystem due to reduced light penetration, and may also be toxic to some aquatic life due to the presence of metals, chlorides, etc. in them; as well as inhibiting several biological processes (Karaca et al 2008;Rangnathan et al 2007). Many treatment techniques have been applied to a broad range of water and wastewater contaminated with dyes including physical or chemical treatment processes (Crini 2008).…”

Section: Introductionmentioning

confidence: 99%

Competitive adsorption of dye species from aqueous solution onto melon husk in single and ternary dye systems

Olajire

Giwa

Bello

2014

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Polluted water may contain more than one dye species. Consequently, the behavior of a particular dye in a water system may be affected by the presence of the others. In this study, the adsorption of methylene blue (MB) in single dye system (SDS) and in ternary dye system (TDS) comprising of MB, congo red and methyl orange onto formaldehyde-treated melon husk (FMH) was investigated as a function of pH, contact time and species concentrations. Surface studies of FMH were investigated by Fourier transform infrared and scanning electron microscopy. The dye species adsorption equilibria were rapidly attained after 60 (SDS) and 90 min (TDS) of contact times. The adsorption kinetics were analyzed using pseudo first-order, pseudo second-order and intraparticle diffusion models and the adsorption data were well described by the pseudo second-order model. The equilibrium adsorption data were interpreted in terms of the Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Harkin-Jura and Halsey isotherm models and the goodness of fittings were inspected using linear regression analysis (R 2 ). Our results indicated that the Langmuir model was best fitted, suggesting monolayer adsorption. Thermodynamic study showed that the adsorptions in SDS and TDS on FMH are favourable. The change in entropy (DS°) and heat of adsorption (DH°) of dye species on FMH in TDS were estimated as 82.2 J/ mol K and 17.95 kJ/mol. respectively while in SDS, they were respectively -43.76 J/mol K and -21.84 kJ/mol. The sorption process in both systems was thermodynamically feasible with negative DG°values.

show abstract

Recycling of wastewaters of textile dyeing industries using advanced treatment technology and cost analysis—Case studies

Cited by 134 publications

References 5 publications

Health risk assessment of textile effluent reuses as irrigation water in leafy vegetable Basella alba

Health risk assessment of textile effluent reuses as irrigation water in leafy vegetable Basella alba

Biodecolorization and Bioremediation of Denim Industrial Wastewater by Adapted Bacterial Consortium Immobilized on Inert Polyurethane Foam (PUF) Matrix: A First Approach with Biobarrier Model

Competitive adsorption of dye species from aqueous solution onto melon husk in single and ternary dye systems

Contact Info

Product

Resources

About