Enhancing water efficiency and wastewater treatment using sustainable technologies: A laboratory and pilot study for adhesive and leather chemicals production

Ali, Azhar; Shaikh, Irfan Ahmed; Abbasi, Naeem Akhtar; Firdous, Nabeela; Ashraf, Muhammad

doi:10.1016/j.jwpe.2020.101308

Cited by 12 publications

(4 citation statements)

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“…A number of strategies, such as best available techniques (BATs), were used to reduce the amount of wastewater produced by the leather chemicals manufacturing sector and conserve water (Chung et al, 2013;Yukseler et al, 2017;Khan et al, 2019;Ali et al, 2020). The details of the BATs employed in this study are given as below.…”

Section: Implementation Of Selected Optionsmentioning

confidence: 99%

“…Frontiers in Environmental Science frontiersin.org cooling operations (Warner 2006;Deziani et al, 2017). The greatest substitute, more ecologically friendly and energy-efficient than a water-cooling system, was an aircooled pump (Ali et al, 2020). Two air-cooled pumps were built to cool down heat transfer oil based on literature, which reduces the industry's overall water use by 8%.…”

Section: Reduction Of Cooling Water Consumption At Syntan Plantmentioning

confidence: 99%

“…Floor and vessel washing, spray drying, etc. are included in non-process activities while process water consumption involves the required quantity of water in manufacturing of abovementioned chemicals (Luo et al, 2015;Ali et al, 2020). These operations result in the production of harmful wastewater, posing a major environmental risk (Alyafei, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…In recent literature, the adaptation to smart management practices and process altering methods in chemical manufacturing and cooling tower system has reduced water consumption to about 46%-100% in polyethylene terephthalate production resulting in high environmental performance and profitability (Alkaya and Demirer, 2015). In order to reduce wastewater generation, these sustainable techniques may be applied for the reduction of water consumption (Ali et al, 2020). Industries are having difficulty finding sustainable treatment methods for efficient management that comply with environmental regulations, as traditional treatment technologies are costly, energy-intensive, and landintensive (Moussa et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Application of effluent reduction methods and treatment using advanced oxidation process at leather chemicals and tanning industries

Ali,

Shaikh,

Ahmad

et al. 2024

Front. Environ. Sci.

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The current study set out to assess and create long-term solutions for improving environmental performance concerning water use, wastewater production, and treatment at Syntan plant (glass-lined vessel unit) and application laboratory (small-scale leather retanning. Based on evaluations and analyses, best available techniques including water gauging, pressurized vessel washing, dedication of vessels to similar production, reuse techniques, developing commercial grade intermediate products from wash water, managing cooling water and developing reuse methods of reverse osmosis reject water were applied to reduce water consumption and effluent generation in process and non-process activities. Furthermore, the reduced effluent was subjected to treat using electrochemical processes, i.e., electrocoagulation and electro-Fenton, before it was drained to outside environment. As a result of the applications, 0%–100% change was measured in various process and non-process activities, whereas, 12.8%–100% reduction was measured in effluent. Soft cooling water consumption was reduced by 46.7%. The results of treated effluent parameters were compared and found the final removal efficiencies of total dissolved solids (51.4%), total suspended solids (99.2%), chemical oxygen demand (98.5%) and electric conductivity (67.7%). It is concluded that this study can be considered as a successful model to increased water efficiency in chemical industries, Furthermore, it could serve as a building block for the incorporation of cleaner and sustainable production approach into national agenda and to overcome stern issues of high-water and energy consumption and effluent management in different industries.

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Section: Implementation Of Selected Optionsmentioning

confidence: 99%

Section: Reduction Of Cooling Water Consumption At Syntan Plantmentioning

confidence: 99%