Textile Effluent Treatment Plant Research Articles

Management and Performance Analysis of Textile Effluent Treatment Plants in Laundries of The Local Productive Arrangement of Pernambuco

Objective: The present study aimed to assess 10 laundries for compliance with Brazilian legislation Theoretical Framework: The Local Productive Arrangement (APL) of Pernambuco plays a crucial role in job creation and economic growth in the state. However, the jeans beneficiation process consumes a significant amount of water and involves the use of various chemicals, which generate effluents with high organic loads, color, and toxicity. This has caused serious environmental problems. The issue is exacerbated during prolonged drought periods and by intermittent river flows, which reduce the natural self-purification capacity of the rivers. Method: A total of 334 influent and effluent samples were collected. All the laundries studied employed physicochemical treatment processes (flocculation followed by sedimentation). Results and Discussion: The WWTPs proved to be efficient in the removal of settleable solids, demonstrating that the coagulation and flocculation processes are effective for this purpose, even in scenarios with management deficiencies. On the other hand, poor operation of the treatment plants has resulted in other parameters, such as pH, oils, and greases, being out of compliance with current legislation. The efficiency in reducing BOD was highly inconsistent, with fluctuations ranging from over 90% efficiency to negative values, indicating significant operational issues. High concentrations of organic matter can compromise oxygen levels in the receiving bodies. It is essential to intensify monitoring and improve treatment processes to mitigate negative environmental impacts.

Evaluation of textile effluent treatment plant sludge as supplementary cementitious material in concrete using experimental and machine learning approaches

The growing demand for readymade garments is leading to the production of a large amount of textile effluent sludge (TES) from wastewater treatment plants, which is currently disposed of as backfill, causing land and groundwater contamination. This scenario has prompted researchers to explore the use of industrial waste, such as TES, as a supplementary cementitious material (SCM) to mitigate the carbon footprint of cement production. Therefore, this study aims to investigate the fresh, mechanical, non-destructive characteristics, and predictive modeling of mechanical strengths of TES-based concrete. Machine learning models, including random forest (RF) and artificial neural networks (ANN), were utilized to predict compressive and tensile strengths from various input variables. This study also evaluated the alkalinity, specific gravity, oxide content, and surface area of TES. The findings showed a pH of 9.4 and a CaO content of 33.3 %, indicating TES's potential as an SCM. The research further investigated the properties of concrete with 5–20 % cement-replaced TES, using a total binder content of 488.1 kg/m3 and a water-binder ratio of 0.32. The fresh state properties of the 5–15 % TES incorporated concrete produced normal density concrete, with a slump of 100 ± 20 mm, Kelly ball penetration of 45 ± 7 mm, a compaction factor of 0.92 ± 0.05, and a fresh density of 2464 ± 152 kg/m3. At 28 days, concrete with 15 % TES replacement showed a compressive strength of 25.6 MPa and a tensile strength of 2.88 MPa, achieving 76 % of the strength activity index and 72 % of the relative tensile strength. However, the 15 % TES concrete displayed a water permeability coefficient of 4.4 × 10−12 m/s and an electrical resistivity of 31.5 kΩ cm, compared to the control mix's 2.0 × 10−12 m/s and 37.7 kΩ cm. However, the hardened properties declined significantly after replacing 15 % of cement with TES. The mechanical properties were also estimated using ultra pulse velocity and rebound hammer tests, showing a coefficient of determination (R2) higher than 0.87. The RF model demonstrated superior performance with an R2 value of 0.8802 for compressive strength and 0.8518 for tensile strength, outperforming the ANN model's R2 values of 0.8126 and 0.695, respectively. Scanning electron microscopy confirmed the consistent development of hydration products in the TES-enhanced concrete samples.

Modelling reverse osmosis process and multiple effect evaporator process of common effluent treatment plant using artificial neural network

This paper presents the study on modeling the performance of Textile and Tannery Common Effluent Treatment Plant (CETP) using Artificial Neural Networks (ANN). The process of Reverse Osmosis (RO) Process and Multiple Effect Evaporator (MEE) process of CETP is modelled using ANNs. Two ANN models were developed to predict the performance of CETP dealing with highly saline effluents. Model-I (RO Model) predicts TDS Rejection (%) by taking pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), Chemical Oxygen Demand (COD) of RO feed as input parameters thus providing estimate of salt concentration. Model-II (MEE Model) predicts Steam Output needed by taking pH, TDS, Feed flow as input parameters. Levenberg-Marquardt backpropagation (trainlm) algorithm was used as training function for creation of both of ANN models and Hyperbolic Tangent Sigmoid (tansig) was used as transfer function. Separate model validation has been performed to test the predictability of the model and at last prediction accuracy were analysed to show its efficiency in prediction.

Microfiber prevalence and removal efficiency of textile effluent treatment plants in Bangladesh

Bangladesh is one of the hubs of the textile industry in the world; consequently, microfibers are an emerging threat to the aquatic ecosystem. Traditional effluent treatment plants (ETPs) might not be capable of removing most emerging pollutants like surfactants, dyes, and additives, including microfibers, and the textile industry may be a major source of microfiber pollution through products and ETPs. This study investigated the eleven woven, knit, and denim industries' ETP microfiber abundance and removal efficiency. The average (range) of microfibers found in influent, effluent, and sludge samples was 615.45 ± 377.52 particles/L (170−1460), 212.72 ± 80.14 particles/L (130−380), and 10545.45 ± 7989.54 particles/kg (4400−31000), respectively. The abundant shape was fiber, and most microfibres had sizes between 0 and 100 μm. Eight distinct colors of microfibers were found in the samples; black was the most abundant color among all the samples, followed by brown and blue. The studied ETPs showed a 23.52 % to 82.19 % microfiber removal rate, which is not satisfactory for minimizing pollution. The Fourier transform infrared (FTIR) analysis revealed that the main polymers in the samples were nylon, ethylene-vinyl acetate (EVA), polyethylene terephthalate (PETE), acrylonitrile butadiene styrene (ABS), cellulose acetate (CA), low-density polyethylene (LDPE or linear LDPE), and high-density polyethylene (HDPE). The contamination factor (CF) and pollution load index (PLI), which assess ecological risks, showed that samples were moderately to very highly contaminated by microfiber and could pose a threat to the aquatic ecosystem. The findings would help identify transformative challenges required for minimizing microfiber pollution from industrial sectors and improving ETP systems.

Screening of Azo-Dye-Degrading Bacteria from Textile Industry Wastewater-Activated Sludge

This study investigates the biodegradation of Reactive Red 141 (RR 141), an azo dye prevalent in the textile industry, by bacteria isolated from activated sludge in a textile effluent treatment plant. RR 141, characterized by nitrogen–nitrogen double bonds (-N=N-), contributes to environmental issues when improperly disposed of in textile effluents, leading to reduced oxygen levels in water bodies, diminished sunlight penetration, and the formation of potentially carcinogenic and mutagenic aromatic amines. This research focuses on identifying bacteria from activated sludge with the potential to decolorize RR 141. Microbiological identification employs MALDI-TOF-MS, known for its precision and rapid identification of environmental bacteria, enhancing treatment efficiency. Results highlight Bacillus thuringiensis and Kosakonia radicincitans as the most promising strains for RR 141 decolorization. Analysis of micro-organisms in activated sludge and database exploration suggests a correlation between these strains and the decolorization process. It is worth noting that this is the first report on the potential use of K. radicincitans for azo dye decolorization. Three distinct culture media—BHI, MSG, and MS—were assessed to investigate their impact on RR 141 decolorization. Notably, BHI and MSG media, incorporating a carbon source, facilitated the bacterial growth of both tested species (B. thuringiensis and K. radicincitans), a phenomenon absent in the MS medium. This observation suggests that the bacteria exhibit limited capability to utilize RR 141 dye as a carbon source, pointing towards the influence of the culture medium on the discoloration process. The study evaluates performance kinetics, decolorization capacity through UV-VIS spectrophotometry, potential degradation pathways via HPLC-MS analysis, phytotoxicity, and enzymatic activity identification. B. thuringiensis and K. radicincitans exhibit potential in decolorizing RR141, with 38% and 26% removal individually in 120 h. As a consortium, they achieved 36% removal in 12 h, primarily through biosorption rather than biodegradation, as indicated by HPLC-MS analyses. In conclusion, the research emphasizes the importance of exploring bacteria from activated sludge to optimize azo dye degradation in textile effluents. B. thuringiensis and K. radicincitans emerge as promising candidates for bioremediation, and the application of MALDI-TOF-MS proves invaluable for rapid and precise bacteria identification.

Characterization of textile effluent treatment plant sludge and its industrial application in fired clay bricks with health risk assessment

The textile industry in Bangladesh faces environmental and health challenges due to the disposal of solid waste from Effluent Treatment Plants (ETPs). To address this issue, a study was conducted using soil from a brick industry near Dhaka, amending it with varying amounts of dry sludge to create clay bricks. The original soil had a loam texture and medium plasticity. The research found that adding 9 wt% of sludge resulted in Grade A commercial bricks with a compressive strength of 15.33 MPa and water absorption of 13.33 wt%, meeting BDS 208 standards. However, these sludge-incorporated bricks experienced more shrinkage during the burning process due to organic content, requiring additional soil to maintain conventional dimensions. Also, to assess the health hazards of these sludge-incorporated bricks, a leaching test was performed, revealing that no toxic heavy metals (Pb, Cd, Cr, Cu, Ni, and Zn) in the leachate exceeded the limits set by the United States Environmental Protection Agency (USEPA). The study indicates that textile ETP sludge can serve as a sustainable raw material for bricks, potentially reducing the environmental burden caused by textile sludge disposal by 28.75%. This innovative approach offers a promising solution to both environmental and health concerns associated with textile waste in Bangladesh's industrial sector.

Utilization of textile and tannery sludges in cement mortar

The aim of this study is to investigate the characteristics of Textile ETP and Tannery sludges and strength characteristics of cement-sludge mortar. The textile Effluent Treatment Plant (ETP) and tannery sludges have the potential to become a serious environmental burden for Bangladesh in the future because of their high rate of generation, with a very limited safe disposal option. On the other hand, day by day the demand and price of cement are increasing. This study was devoted to evaluate the technical feasibility of utilizing textile ETP and tannery sludges in cement mortar both as separate and mixed modes. An attempt was taken to replace 5%, 10%, 15% and 20% by weight of cement in mortar with textile ETP and tannery sludges both as a separate and mixed modes. To evaluate the characteristics of the textile ETP and tannery sludges, the pH, moisture content, organic matter content, chemical composition (XRF), TCLP (Heavy Metal) tests were studied. The initial and final setting time, compressive strength, tensile strength, and water absorption of mortar by partial replacement of cement by textile ETP and tannery sludges both as separate and mixed modes were studied to evaluate the properties of cement-sludge mortar. It was found that the textile ETP and tannery sludges both as separate and mixed modes can be a replacement of cement up to 10% in cement mortar and can be used for the purposes of S-type of mortar. The textile ETP sludge as a separate and mixed modes of the sludges can be a replacement of cement up to 20% and can be used for the purposes of N-type of mortar.

Utilization of Domestic Wastewater and Textile Effluent Treatment Plant Sludge as Brick Material

Utilization of Domestic Wastewater and Textile Effluent Treatment Plant Sludge as Brick Material

Sustainable design of textile industry effluent treatment plant with constructed wetland

Textile has become a major source of income for India’s economy. Steps involved in textile manufacturing are fabrication of yarn, fabric production, dying, printing and finishing. Dying, printing and finishing are mainly water intensive processes which results in the generation of liquid waste. This effluent contains essential compounds such as salts, acids, alkalis and anthropogenic dyes in good concentration Many times dyes acts as sources of heavy metals also. Effluent from this type of industries not only makes the water body unfit for downstream use but also disturbs the natural aquatic ecosystems. Coloured textile effluent after joining any water body make the water unfit for downstream usage as well as interfere with natural activities of aquatic life. Developing countries thus require effective, economic and environment friendly sustainable treatment option.Constructed Wetlands (CW) provide an economic, easy as well as environment friendly treatment option having the ability to treat even different industrial effluents. CW has been found to be 42 %more economical than activated sludge process where as 80% more economical based on operation and maintenance expenses. In the current study, effort has been given to design a sustainable textile industry effluent treatment plant with Constructed Wetland. CW has been designed by various methods, under different flow conditions and indifferent weather conditions. The site under study had a green belt of 1500 sq. meter. According to k-C* model while considering the chemical oxygen demand (COD) load both horizontal as well as vertical subsurface flow, CW can be constructed in these green belt. As a result of current study, it was concluded that CWs are capable enough to replace the conventional activated sludge process (ASP). CW design has been done on the basis of both biological oxygen demand (BOD) as well as COD load for summer and winter conditions. K-C* model gave reliable result. The organization under study is having a green belt of 1500 sq. mts. According to k-C* model the horizontal CW can be designed after giving pre-treatment by ASP where for vertical subsurface flow CW the treatment can be more sustainable and the effluent can be wholely treated by CW.

Macrobenthos‐based RBP II (Rapid Bioassessment Protocol II) as a tool to assess the sediment and water quality in a treated textile effluent receiving stream ecosystem associated with a wetland marsh: A case study from Sri Lanka

AbstractMacrobenthos are important bioindicators of organic and nutrient pollution. The present study used the macrobenthos‐based rapid bioassessment protocol (RBP II) to study the effects of treated textile effluent inputs into a natural stream ecosystem connected to a wetland marsh. Three reference sites and three sites receiving point source inputs from a textile effluent treatment plant were selected. The physical and chemical parameters, and the abundance and diversity of macrobenthos at each site, were assessed during the rainy and dry seasons of 2020. Although the water quality parameters at the sites representing the point source inputs did not exceed the standard textile effluent discharge limits, a significant influence on the macrobenthic community composition was observed at the effluent discharge receiving sites. The dominant macrobenthos in the ecosystem (Baetis sp., Leptophlebia sp; Tubifex sp.) exhibited significant correlations with lead, copper, chromium and cadmium concentrations of the water and sediments. The Shannon–Weiner Diversity Index, Family Biotic Index, EPT Index and EPT/C ratio used in the rapid bioassessment protocol indicated significantly strong correlations with the water and sediment quality parameters, demonstrating their suitability to be used as a tool for biological measurements in aquatic ecosystems receiving textile effluents.

Sustainable building materials using textile effluent treatment plant sludge: a review

A huge quantity of textile effluent sludge is generated from 21 076 textile units of India and dumped in large areas, leading to contamination of soil, surface water and groundwater. Hence, effective management of this sludge is important for its reuse and safe disposal. Considering the utilization of this waste in construction activities, the current paper explores the potential of textile sludge produced from textile industry effluent treatment plants. Many researchers have attempted to reuse this sludge for the development of sustainable construction materials and suggested its optimum usage as a partial substitution for fine aggregate, cement and clay with or without additives for the manufacturing of non-structural building components. This paper provides a critical review of the production of non-structural elements – namely, sustainable building blocks, clay bricks, mortar and paver blocks – using textile effluent treatment plant sludge and recommends optimum ranges of 5–30, 5–40, 5–50 and 20–40%, respectively. The prominent gaps are suggested as the outcome of studies such as techno-economic feasibility of the product, thermal and energy building simulation along with the life-cycle assessment and fatigue life assessment of the developed paver blocks.

Feasibility Study on Paver Blocks blended with Textile Effluent Sludge and M-Sand

Textile sludge (TS) management is a huge problem for its disposal from the textile industry. It has tremendous applications, such as walking paths, street road, and fuel stations, etc. In this manner, an innovative step has been towards the manufacture of paver blocks blended with textile effluent treatment plant (TETP) sludge to use of it in reasonable extends. A different percentage of sludge starts from 10%, 15%, 20%, 25% and 30% to be taken for this study for the effective utilization of sludge to the construction industry. This thinks about looked for to experience the potential use of TS as a binding fabric for paving blocks generation. Conventional paver block is cast with full replacement of sand by using M-sand as fine aggregate. Paver blocks consist of TS in addition to distinctive proportions was casted according to the recommendation of Indian Standards (IS) 15658 (2006), also the various results was obtained through experimentally and it was compared to the conventional paver block. The different mix combinations outcome reveals that, 30% of cement replacement by effective utilization of TS from the textile industry.

Development of an electroactive aerobic biocathode for microbial fuel cell applications.

Microbial biocathodes are gaining interest due to their low cost, environmental friendliness and sustainable nature. In this study, a microbial consortium was enriched from activated sludge obtained from a common textile effluent treatment plant in the absence of organic carbon source to produce an electroactive biofilm. Chronoamperometry method of enrichment was carried out for over 70 days to select for electroactive bacteria that could be used as a cathode catalyst in microbial fuel cells (MFC). The resultant biofilm produced an average peak current of -0.7 mA during the enrichment and produced a maximum power density of 64.6 ± 3.5 mW m-2 compared to platinum (72.7 ± 1.2 mW m-2 ) in a Shewanella-based MFC. Microbial community analysis of the initial sludge sample and enriched samples, based on 16S rRNA gene sequencing, revealed the selection of chemolithotrophs with the most dominant phylum being Bacteroidetes, Proteobacteria, Firmicutes, Actinobacteria and Acidobacteria in the enriched samples. A variety of CO2 fixing and nitrate-reducing bacteria was present in the resultant biofilm on the cathode. This study suggests that microbial consortia are capable of replacing expensive platinum as a cathode catalyst in MFCs.

Potential of anaerobic co-digestion in improving the environmental quality of agro-textile wastewater sludge.

Sludge from textile effluent treatment plants (ETP) remains a challenge for many industries due to inefficient and limited waste management strategies. This study explores the potential of using anaerobic digestion (AD) to improve the environmental quality of textile ETP sludge. The AD of ETP sludge is affected by the low C/N ratio (3.7), heavy metal content, and toxicity. To improve the process, co-digestion of ETP sludge with different substrates (sewage sludge, cow dung, and sawdust) under mesophilic conditions (37 °C), followed by a thermochemical pretreatment was assessed. The results showed that anaerobic co-digestion of the textile sludge with the co-substrates is effective in reducing pollution load. It was found that organic matters degraded during the 30-day AD process. The chemical oxygen demand and biological oxygen demand reduction was in the range of 33.1-88.5% and 48.1-67.1%, respectively. Also, heavy metal (cadmium, lead, iron, and, mercury) concentration was slightly reduced after digestion. Maximal biogas yield was achieved from co-digestion of textile sludge and sewage sludge at a mixing ratio of 3:1, 1:1, and 1:3, and methane content was respectively 87.9%, 68.9%, and 69.5% of the gas composition. The results from this study show that co-digestion will not only reduce the environmental pollution and health risks from the textile industry but also recover useful energy.

Experimental study on concrete by partial replacement of fine aggregate by textile effluent treatment plant sludge

Chemical sludge produced by textile industries poses a high threat to the environment causing pollution in all stages of its treatment and disposal. In this study sludge from textile dying unit was collected. It has been partially replaced for fine aggregate in concrete up to 20% replacement to find out the possibility of reuse of this hazardous waste in build materials. Manufactured sand made by grinding angular aggregates was used as fine aggregate. Study shows that the samples failed to meet the desired compressive strength required for structural applications. The reason for failure in strength development is to be further experimented by individual analysis of sludge components.

Case study on sustainability of textile wastewater treatment plant based on lifecycle assessment approach

Abstract The present study is aimed at the estimation of the environmental footprints of a textile effluent treatment plant in India based on Lifecycle analysis (LCA) thinking of gate-to-gate approach with closed-loop recycling. The real-time operational data were collected on a daily basis for a year with minimum experimental uncertainties and treated as lifecycle inventory. Based on existing plant practice, two-fold functional units of 1,500 m 3 (effluent stream 1) and 1,200 m 3 (effluent stream 2) were considered for the study, and the system boundary was designed. The analysis demonstrated that the ozonation process contributes significantly in generating environmental burden, with a global warming potential of 1,440 kg and 2,041 kg CO 2 equivalent for effluent stream 1 and 2, respectively. Conversely, activated carbon filter imparts less to the environmental burden, with a global warming potential of 217 kg and 173.5 kg CO 2 equivalent for effluent stream 1 and 2, respectively, compared to other processes. Based on the parametric analysis, it was understood that electricity contributed substantially; and thus sensitivity/scenario analysis was carried out, showing 50% and 90% attenuation of environmental burden with increased renewable energy share from 50% to 100%. Increase in effluent reuse scenario also found to have augmented the environmental performance of the system. Based on the data presented in this study, policy-makers can decide strategies to reduce the environmental burden of textile industry effluent.

Electron beam irradiation post treatment for degradation of non biodegradable contaminants in textile wastewater

Wet processing is one of the major streams in textile engineering refers to textile chemical processing. Textile wet processing involves three stages mainly pre-treatment or preparation (desizing, scouring), colouration (dyeing and printing) and finishing. In desizing and scouring processes sizing material (starch/ PVA) and natural impurities (oil/wax/fat) are removed respectively. Dyeing and printing are the processes for colouration of fabric with natural or synthetic dye and for producing any pattern on the fabric respectively. Textile wet processing produces high load of pollutants to textile effluent treatment plant (ETP) of which aim is to safely discharge of water to meet the consent limits provided by environmental regulatory authority. In this paper, the degradation of simulated textile waste water arising from various processes viz. desizing, scouring, dyeing and printing was evaluated by treatability study with activated sludge process. The results show desizing, dyeing and printing processes mainly to be contributing to non biodegradable contaminants in textile effluent treatment plant (ETP). In this study, electron beam radiation technology was applied to enhance the biodegradability of simulated textile effluent (mixed) pre-treated by activated sludge process. This mixed effluent comprises of all constituents related to scouring, desizing, dyeing and printing process with known concentrations has never been considered before, in any of the available literature on EB irradiation of Textile waste waters. Most of the studies on EB irradiation on wastewater showed focus on single pollutant. The results showed that E-beam irradiation pre-treatment did not improve the biodegradability of textile effluent even when it was irradiated up to 80 kGy. However, in contrast, e-beam irradiation as post treatment to biologically treated sample could significantly enhance the biodegradability at very low dose 1 kGy where hydroxyl radical (OH.) played a very active role. The values of COD, BOD, and BOD/COD ratio were compared before and after E-beam treatment. The absorbance spectra in UV-Visible range were obtained for mixed effluent.

Production of sludge-incorporated paver blocks for efficient waste management

ABSTRACTWaste management plays a vital role in the reuse of industry wastes in to useful conversions. The treatment of effluents from the combined textile effluent treatment plant and hypo sludge from the paper industry results in sludge generation, which poses a huge challenge for its disposal. Therefore, an eco-friendly attempt is made to utilize them in the production of paver blocks. Paver blocks are construction units that have vast applications in street roads, walking paths, fuel stations, and so on. In this study, an innovative attempt has been made to manufacture paver blocks incorporating textile effluent treatment plant sludge and hypo sludge, to utilize them in suitable proportions. The effect of adding silica fume and polypropylene fibre in paver blocks has also been studied. Paver blocks containing sludge with different proportions were cast based on the recommendations in Indian Standards (IS) 15658, and the test results were compared with the nominal M20 grade and M30 grade paver blocks. The outcomes of the paver block combinations were studied and found to be an effective utilization of sludge with substantial cement replacement of up to 35%, resulting in effective waste management for specific industries.Implications: Presently, paver blocks are construction units that have vast application in street roads and other constructions like walking paths, fuel stations, and so on. Also, paver blocks possess easy maintenance during breakages. Based on this application, an innovative attempt has been made to manufacture paver blocks incorporating textile effluent treatment plant sludge and hypo sludge to utilize them in suitable proportions.

Development of polyester needle-punched nonwoven fabrics for filter press applications

This paper reports the development of nonwoven fabric by needle-punching technique for filter press application in textile effluent treatment plant. For filter press development, the nonwoven fabric was reinforced with the nylon scrim as the central layer in order to withstand the filtration pressure. The nonwoven fabrics were developed using different denier polyester fibres and changing punch density. The influence of fibre fineness and punch density on the properties of nonwovens was investigated. The filtration parameters such as filtration efficiency, dewatering efficiency, blinding tendency and cake discharge properties of the developed nonwoven filter fabrics filter fabrics were evaluated and compared with existing woven fabric filter media. The influence of calendering on the filtration properties of the nonwovens was also studied. The results showed that bursting strength of the developed nonwovens increased with increase in fibre fineness and decrease in punch density. It was also found that the air permeability of the developed nonwovens varied inversely in relation to punch density and the proportion of fine fibres. It was observed that developed nonwovens had 8% higher filtration efficiency and 6% higher dewatering efficiency compared to the existing woven fabric filter media. The blinding resistance and cake discharge properties were slightly lower than that of woven fabric filter. It was found that calendering improves filtration properties of the developed nonwoven fabrics.

Optimization of conditions for the biological treatment of textile dyes using isolated soil bacteria

Background: In the 21st century, environmental pollution has been acknowledged as one of the major problems. The textile and dyeing industries contribute a major portion by discharging intensely complex effluent consisting of highly noxious azoic dyes. Methods: In this study, biological treatment using acclimatized microorganisms were employed in search of a cheap and eco-friendly substitute for color removal from textile waste. The microbial inocula were isolated from effluent soil samples and then applied to flasks containing azo dyes as the only source of carbon for decolorization. Results: Biochemical tests postulated predominance of Enterococcus and Bacillus bacterial strains. CO isolate or Bacillus farraginis emerged as the best decolorizer of Orange M2R dye, decolorizing 98% of the dye. BG isolate or Paenibacillus macerans showed maximum decolorization on Green GS dye that decolorized 97% of the dye. The optimum physiochemical condition for decolorization of OM2R and GGS dye was pH 7.0, 2% NaCl conc., 1% initial dye conc. and 37°C temperature by the selected isolates. Conclusions: The findings were validated and have the potential for bioremediation in textile waste effluent treatment plants.