Dynamics of effluent treatment plant during commissioning of activated sludge process unit

Bafana, Amit; Kumar, G. Mahesh; Kashyap, Sanjay M.; Kanade, Gajanan S.; Shinde, Vilas M.

doi:10.1007/s11356-014-3597-x

Cited by 8 publications

(6 citation statements)

References 23 publications

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“…ETP is very important to protect the environment and different lives from threat of toxic industrial wastewater. So the efficiency of ETPs must be regularly monitored, particularly after major repair or replacement work (Bafana et al 2015). However, the study showed that amongst 9 industries, most of the industries discharged water within DoE prescribed limit and only 3 industries crossed the standards in case of physical parameters.…”

Section: Analysis Of Physical Parametersmentioning

confidence: 99%

“…The evaluation of ETP's efficiency is very important to protect environment and public health from dangers of industrial wastewater. Hence, the efficiency of ETPs must be, regularly, monitored (Bafana et al 2015) and present study evaluated the performance of ETPs of different industries at Kalurghat, Chittagong. From (Table 5), it is seen that the study was carried to analyze target heavy metals parameter (e.g., Cr, Pb, Zn, Cu, and Ni) of the outlet of ETPs; there is only Alfa Textile for (Cu, Zn, & Cr), Well Group for Cr and Asian Apparels for Ni that metals content were not within the DoE standards and in the rest industries such parameters were within the DoE prescribed water quality parameters.…”

Section: Analysis Of Chemical Parametersmentioning

confidence: 99%

“…Bangladesh has a great vicissitude limiting pollution by taking lessons from industrialized countries yet (Bafana et al 2015;Hosen et al 2015). Speedy industrial growth has greatly improved economic status as well quality of life, inversely has contributed awfully on environmental degradation ( Centre for Policy Dialogue (CPD) 2002; Islam et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, pollution from industrial effluent is one of the major environmental concerns recently faced by the country (Kapley & Purohit 2009;Bafana et al 2015). Thereby, it requires on-site treatment before releasing into public sewage system (Emongor et al 2005;Xu et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Hence, the released effluents from the Effluent Treatment Plants (ETPs) of industries must meet the national effluent discharge quality standards (DoE 2008;Khan et al 2009a) where Common Effluent Treatment Plant (CETP) facilitates the industries in easier control of pollution with low-cost as well acts as a step towards cleaner environment. Inasmuch efficiency and effectiveness of an ETP is very important (Khan et al 2009b;Bafana et al 2015), so the CETP is a better and economically viable option for industrial effluents treatment (Tufekci et al 2007;Bhattacharya et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Efficiency analysis of effluents treatment plants of different industries at Kalurghat – Port City of Bangladesh

Wahid

Alam

Hossain

et al. 2017

Water Practice and Technology

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The study was executed at Kalurghat industrial area to determine the efficiency of effluent treatment plants by testing different physicochemical parameters. Results revealed that only 3 out of 9 industries treated their effluents efficiently and discharged following the standards of Department of Environment. The remaining industries viz. Alfa Textile treated their effluent but the values of pH (10.2), dissolve oxygen (DO) (3.6 mg/L), biochemical oxygen demand (BOD) (89 mg/L), chemical oxygen demand (COD) (282 mg/L), total suspended solid (TSS) (221 mg/L), and electric conductivity (EC) (4,003 μS/cm) exceeded the standards, and released untreated effluents directly into the environment. Smart Jeans didn't maintain the standard of EC (1,927 μS/cm), DO (3.2 mg/L), BOD (96 mg/L) and COD (216 mg/L). Asian Apparels EC (1,973 μS/cm), DO (4 mg/L), BOD (79 mg/L), and COD (221 mg/L) weren't up to the standards. Similarly, Mans Fashion EC (1,243 μS/cm), DO (3.7 mg/L), TSS (180 mg/L), BOD (78 mg/L), and COD (255 mg/L) also exceeded the standards. In addition, Well Group TSS (160 mg/L), EC (3,201 μS/cm), DO (4.2 mg/L), and COD (235 mg/L) while Golden Height only EC (1,762 μS/cm) crossed the prescribed limits. Inversely, all the sampled industries volleyed effluents containing metals within the standards level except Alfa Textile (Cu, Zn, & Cr), Well Group (Cr) and Asian Apparels (Ni).

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Section: Analysis Of Physical Parametersmentioning

confidence: 99%

Section: Analysis Of Chemical Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Efficiency analysis of effluents treatment plants of different industries at Kalurghat – Port City of Bangladesh

Wahid

Alam

Hossain

et al. 2017

Water Practice and Technology

View full text Add to dashboard Cite

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Impact of sludge deposition on biodiversity

Manzetti

Spoel

2015

Ecotoxicology

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Sludge deposition in the environment is carried out in several countries. It encompasses the dispersion of treated or untreated sludge in forests, marsh lands, open waters as well as estuarine systems resulting in the gradual accumulation of toxins and persistent organic compounds in the environment. Studies on the life cycle of compounds from sludge deposition and the consequences of deposition are few. Most reports focus rather on treatment-methods and approaches, legislative aspects as well as analytical evaluations of the chemical profiles of sludge. This paper reviews recent as well as some older studies on sludge deposition in forests and other ecosystems. From the literature covered it can be concluded that sludge deposition induces two detrimental effects on the environment: (1) raising of the levels of persistent toxins in soil, vegetation and wild life and (2) slow and long-termed biodiversity-reduction through the fertilizing nutrient pollution operating on the vegetation. Since recent studies show that eutrophication of the environment is a major threat to global biodiversity supplying additional nutrients through sludge-based fertilization seems imprudent. Toxins that accumulate in the vegetation are transferred to feeding herbivores and their predators, resulting in a reduced long-term survival chance of exposed species. We briefly review current legislation for sludge deposition and suggest alternative routes to handling this difficult class of waste.

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