scholarly journals Investigation of Effluent Quality from an Effluent Treatment Plant of a Textile Industry, Fakir Knitwear Ltd. Narayangonj, Bangladesh

2016 ◽  
Vol 8 (2) ◽  
pp. 25-31 ◽  
Author(s):  
MRH Sarker ◽  
A Razzaque ◽  
MM Hoque ◽  
S Roy ◽  
MK Hossain
Keyword(s):  
Textile Industry ◽  
Treatment Plant ◽  
Industrial Effluents ◽  
Quality Parameters ◽  
Effluent Treatment ◽  
Effluent Quality ◽  
Effluent Treatment Plant ◽  
Standard Quality ◽  
Set Up ◽  
Better Than

Textile industries are the major contributor to environmental pollution and health hazards by generating huge amount of effluents that contain several pollutants and coloring agents. The concentration of these pollutants can be reduced to the permissible limit with the help of an Effluent Treatment Plant (ETP). The study was conducted to observe the textile effluent management techniques of an Effluent Treatment Plant (ETP) of Fakir Knitwear Limited (FKL), Narayanganj, Bangladesh. FKL set up a biological treatment plant to treat the effluent generated by the industry. Different effluent quality parameters were investigated at different stages in ETP. The effluent of the outlet was dark colored probably because of soluble coloring materials of the effluent but it is comparatively better than that of raw wastewater. There were found higher EC values than the standards which indicated that the greater amount of salts in the water due to dumping of solid wastes and discharging of industrial effluents. The highest TDS value 2054 ppm was observed at the screening pit unit than the other parts of the ETP. The highest DO was found 4.58 ppm in clarification tank which was within the standard value of aquaculture. The study also showed that the lowest BOD (24 ppm) and COD (145 ppm) was found at the outlet which was comparatively better than others. Although the effluent from the outlet contained pollutants, these effluent quality was comparatively good than the untreated waste water discharged from the industry. After treatment, the effluent of outlet moderately ensures the standard quality for aquaculture and irrigation. The results suggested that it is obvious to run the ETP regularly to improve the quality of effluents to save our native environment from the harmful effects of wastewater.J. Environ. Sci. & Natural Resources, 8(2): 25-31 2015

scholarly journals Improved ammonium removal from industrial wastewater through systematic adaptation of wild type Chlorella pyrenoidosa

2016 ◽  
Vol 75 (1) ◽  
pp. 182-188 ◽  
Author(s):  
Asma Ahmed ◽  
Nimmakayala Jyothi ◽  
Adithya Ramesh
Keyword(s):  
Light Intensity ◽  
Industrial Wastewater ◽  
Treatment Plant ◽  
Industrial Effluents ◽  
Chlorella Pyrenoidosa ◽  
Single Step ◽  
Effluent Treatment ◽  
Ammonium Removal ◽  
Effluent Treatment Plant ◽  
Ammonium Tolerance

A single step process is proposed for ammonium removal from nitrogenous industrial effluents, with a concomitant generation of algal biomass. A microalgal strain found in the effluent treatment plant of a fertilizer industry in Mumbai, India was systematically adapted to remove up to 700 ppm of ammoniacal nitrogen from industrial wastewater, which is nearly four times higher than the ammonium tolerance reported in the literature as well as other algal strains tested in our laboratory. 18S rRNA sequencing revealed the strain to be Chlorella pyrenoidosa. Effects of process parameters such as pH, temperature and light intensity on cell growth and ammonium removal by the adapted cells were studied. Optimal conditions were found to be pH of 9, temperature of 30 °C and a light intensity of 3,500 Lux for the adapted cells.

Treatment of wastewater from the potato chips and snacks manufacturing industry

1997 ◽  
Vol 36 (2-3) ◽  
pp. 329-335 ◽  
Author(s):  
Ioannis Hadjivassilis ◽  
Stanislav Gajdos ◽  
Dusan Vanco ◽  
Michael Nicolaou
Keyword(s):  
Mass Flux ◽  
Manufacturing Industry ◽  
Industrial Effluent ◽  
Treatment Plant ◽  
Potato Chips ◽  
Effluent Treatment ◽  
Effluent Treatment Plant ◽  
Industrial Effluent Treatment ◽  
Better Than

A small industrial effluent treatment plant has been designed and installed for the treatment of wastewater from a potato chips and snacks factory. The total daily flow rate to the plant was 115 m3/d, while the influent COD mass flux was 838.7 kg/d and the BOD mass flux was 626.7 kg/d. The applied method of treatment is a simple upflow anaerobic reactor with internal settling and gas collection units, followed by aerobic treatment based on the activated sludge process with diffused air system. The quality of the treated water is better than requested and the overall treatment process efficiencies are 99.2% for COD removal and 99.5% for BOD5 removal. The results of the operation of the plant during the first five months are examined and described in this paper.

scholarly journals Treatment of Common Effluent Treatment Plant Pollutant under Growing & Non-growing Condition of Biomass

2020 ◽  
pp. 15-21
Author(s):  
Shipra Jha ◽  
S. N. Dikshit
Keyword(s):  
Heavy Metals ◽  
Environmental Concern ◽  
Industrial Effluent ◽  
Treatment Plant ◽  
Industrial Effluents ◽  
Industrial Applications ◽  
Effluent Treatment ◽  
Effluent Treatment Plant ◽  
Living Tissues ◽  
Incomplete Treatment

Heavy metal pollution in wastewater has always been a serious environmental problem because heavy metals are not biodegradable and can be accumulated in living tissues. Copper is widely used in various important industrial applications. The increasing level of heavy metals in the aquatic system due to incomplete treatment of industrial wastewater by existing conventional methods is of environmental concern. Therefore, there has been an increasing interest in the possibility of using biological treatments. It is important to evaluate the performance of biomass with actual industrial effluent to ensure its field applicability. Hence the experiments were conducted with actual industrial effluents collected from Effluent Treatment Plant (ETP) and tannery industry.

scholarly journals Green Insights of Textile Industry in Bangladesh: A Case Study on Mozart Knitting Ltd.

2014 ◽  
Vol 3 (1) ◽  
pp. 93-108 ◽  
Author(s):  
Mst. Afroja Aktar
Keyword(s):  
Commercial Banks ◽  
Textile Industry ◽  
Treatment Plant ◽  
Jel Classification ◽  
Effluent Treatment ◽  
National Standard ◽  
Classification Code ◽  
Textile Dyeing ◽  
Effluent Treatment Plant

The effectiveness of individual units of an Effluent Treatment Plant (ETP) agrees on the entire performance of the plant and the ultimately echoing effluent standard. In this study, an ETP of a composite textile industry in Bangladesh was investigated using this method. After completion of the stipulated study, findings came into force illustrated that water samples had been collected from the dyeing unit and accordingly had been used for the ETP and also been determined for the key parameters. The results were used to identify problems with the treatment units and broadly suggested for modifications. Simple but fully-bodied methodology was developed for assessing the performance of various treatment units and the ETP as a whole that could be implemented by ETP managers on a regular basis for improving the performance so that the effluent meets national standard as well as conforms to the requirements of international standard which is a compliance of the international buyers. To comply with the BB Guidelines commercial banks have taken initiatives on financing to the textile dyeing units in question with the implementation of ETP.  The ETP’s performance on Mozart Knitting Ltd. shown that it has been performing with the underprivileged management, especially chemical dosing were affecting the ETP’s performance and that simple measures could address the problems. A number of equipment i.e middle pathways rolling, water transferring pipes should repair without more ado. JEL Classification Code: L67, K32  

Study on corrosion investigations in industrial effluents: a review

2019 ◽  
Vol 37 (2) ◽  
pp. 115-130
Author(s):  
Chhotu Ram ◽  
Bushra Zaman ◽  
Amit Dhir
Keyword(s):  
Present Report ◽  
Treatment Plant ◽  
Industrial Effluents ◽  
Paper Mill ◽  
Effluent Treatment ◽  
Paper Mill Effluents ◽  
Effluent Treatment Plant ◽  
Calcium Nitrite ◽  
Materials Used ◽  
Ph Level

AbstractCorrosion affects the usefulness of metallic materials used in the construction of an effluent treatment plant (ETP). The present report investigates the corrosive and inhibitive properties of the chemicals present in the effluent of paper mill and distillery industries. Chemicals such as chloride, chlorophenols, phosphate, calcium, nitrite, and nitrate enhance corrosion, whereas the presence of sulfate, potassium, organic matter, and melanoidins (color) inhibits corrosion at an acidic pH level in distillery and paper mill effluents. A finding shows that pH level has an important role in increasing or decreasing the effect on corrosivity of effluents.

scholarly journals Performance Evaluation of Textile Effluent Treatment Plant: Bangladesh Perspective

2022 ◽  
Vol 7 (1) ◽  
pp. 25-34
Author(s):  
Md. Najmul Hasan ◽  
Samsul Islam ◽  
Mohammad Zoynal Abedin
Keyword(s):  
Removal Efficiency ◽  
Textile Industry ◽  
Ph Value ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Effluent Treatment ◽  
Discharge Water ◽  
Effluent Treatment Plant ◽  
Multiple Unit ◽  
Percentage Removal

The present study was undertaken to evaluate the performance efficiency of an Effluent Treatment Plant (ETP) of a Textile industry located at Tongi, Bangladesh with biological treatment (BT) and Membrane Bio-Reactor (MBR) with an average inflow of 300 m3/hr. The effluent samples were collected from the inlet and outlet of the ETP on a weekly basis for a 4 weeks’ period and were analysed for key parameters such as colour, temperature, total suspended solids (TSS), Total Dissolved Solids (TDS), pH, Dissolved Oxygen (DO), Biological Oxygen Demand (BOD), and Chemical Oxygen Demand (COD). In this study, it was observed that the colour of the effluent in the inlet was dark blue and after multiple unit treatments of the colour’s final outlet the discharge, water colour was very light purple. The temperature was varied from 32.2⁰C to 34.33⁰C. The TDS was varied from 1252.5 mg/l to 1087.5 mg/l and the percentage removal efficiency of TDS was varied from 21.47% to 42.7%. The TSS was varied from 4 mg/l to 4.5 mg/l and the percentage removal efficiency of TSS was varied from 98.48% to 98.21%. The pH value was varied from 6.48 to 7.63. The DO value in the inlet was varied from 6.47 mg/l to 6.775 mg/l. The BOD was recorded from 12.75 mg/l to 17.75 mg/l and the percentage removal efficiency of BOD was varied from 89.92% to 87.24%. The COD was varied from 33.75 mg/l to 34.25 mg/l and the percentage removal efficiency of COD was varied from 91.11% to 90.5%. It is conjectured that the values of the measured parameters are seen to be within the permissible limit as per the standard of the Department of Environment (DoE) of Bangladesh.

The Efficiency of a Biological Activated Sludge Effluent Treatment Plant with Extended Aeration

1988 ◽  
Vol 20 (1) ◽  
pp. 65-72 ◽  
Author(s):  
Rurik Skogman ◽  
Reino Lammi
Keyword(s):  
Activated Sludge ◽  
Suspended Solids ◽  
Treatment Plant ◽  
Forest Products ◽  
Effluent Treatment ◽  
Chlorinated Phenols ◽  
Forest Products Industry ◽  
Effluent Treatment Plant ◽  
Closed Systems ◽  
Treating Effluent

The requirements imposed on the Finnish forest products industry by the water authorities have focused on the reduction of BOD and suspended solids in the wastewaters. The industry has tried to comply with these requirements, first through internal measures such as process changes and closed systems. When these have not been sufficient, external treatment has been resorted to. The Wilh. Schauman Company in Jakobstad has chosen activated sludge with extended aeration from among the available methods for treating effluent. The plant has operated since the beginning of 1986 with extremely good results. In addition to the reduction of BOD and suspended solids, there has been a marked decrease of chlorinated phenols. Chlorinated substances with higher molecular weight are also removed during the process.

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