Assessment of the Quality of Wastewater Generated During Production at a Tannery Plant

Dziadel, Maciej; Ignatowicz, Katarzyna

doi:10.12911/22998993/147253

Cited by 5 publications

(5 citation statements)

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“…According to different data, the volume of wastewater generated per ton of raw hides is about 15 m 3 (Chmielowski, 2019), 33 m 3 (Bartkiewicz & Umiejewska, 2010), and even 40-60 m 3 (Mendrycka & Stawarz, 2012). The literature data is corroborated by one of the smaller tanning facilities, where the tanning processes of a ton of raw hides consumed 21.43 m 3 (Dziadel & Ignatowicz, 2022). While the absorption of such large quantities of water, if available, may not be a problem in these plants, the resulting corresponding quantities of wastewater are already their nuisance.…”

Section: Discussionmentioning

confidence: 84%

“…Of the 4 effluent types, only the mixed effluent from all processes from naming to etching had a BOD 5 /COD ratio of 0.24, defining these effluents as slowly degradable (Dziadel & Ignatowicz, 2022;Karamus, 2017). In the studied wastewater samples collected during the successive stages of production, chromium was only present in the wastewater mixed from the pickling and tanning process coming from a separate chromium wastewater tank.…”

Section: Resultsmentioning

confidence: 99%

“…In one tannery in the Podlaskie Province, the water consumption was 21.43 m /t, with 39 pieces per ton of raw hides (Dziadel & Ignatowicz, 2022). Assuming an average skin size of 4 m 2 , the mentioned volume of wastewater per square meter of finished skin is about 137.4 dm 3 .…”

Section: Methodsmentioning

confidence: 99%

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Water and wastewater management in a small tanning facility

Ignatowicz

Dziadel²

2022

EiS

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This paper presents a tannery industry's water and wastewater management problem. Information has been collected on the volume of water demand and, consequently, wastewater generation in these plants. This made it possible to relate them to the values generated by one of the smaller tanning plants located in Poland. The concentration of the pollutants contained in this wastewater, mainly chromium, was also determined from the study. Management of wastewater is a financial nuisance for small plants. The need to conclude contracts with specialized treatment plants, storage and long-distance transport of sewage, also by the respective companies, generates considerable costs, which may be a limiting factor of the willingness to invest in production. Wort reuse reduces the cost of purchasing chromium as a bath ingredient, reduces the frequency of waste disposal and significantly reduces company costs.

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Section: Discussionmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 99%

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Water and wastewater management in a small tanning facility

Ignatowicz

Dziadel²

2022

EiS

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“…Calcium, sodium, potassium, and sulphate: Using a flame photometer (Model Chemito-1000) and the Jackson method, the calcium, sodium, potassium, and sulphate of the samples were determined 15 . Chloride and chromium: The chloride and chromium contents of the effluent were estimated by argentometric method 14,16,17 .…”

Section: Methodsmentioning

confidence: 99%

Characterization and Impact of Physicochemical Parameters of Tannery Effluent on the Aquatic Environment

Kamalakkannan,

Younis,

Gezici

et al. 2024

Biosci., Biotech. Res. Asia

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One of India's oldest and fastest-growing sectors is tannery production. The tanneries produce various types of pollutants in the environment depending upon the procedure that has been used. The present study investigated the physicochemical parameters of tannery effluents and its impact on the aquatic environment. Tannery effluent contains a variety of hazardous compounds, including chromium, calcium, sodium, potassium, chloride, sulphate, electrical conductivity, colour, odour, pH, temperature, TSS and TDS. All physicochemical parameters was found higher [chromium 1.17-1.52 (1.327±0.132), calcium 800 (713.83±50.33), sodium 1805 (1634.83±75.06), potassium 38-112 (78.44±9.05), chloride 2330-4210 (3334.22±241.92), sulphate 830-1008 (952.17±15.06), EC 1148-2905 (2378.61±124.27), temperature 29.3-38.0 (31.21±1.45), TSS 710-1623, (1199.39±137.99), TDS 7049-8500 (7669.17±141.99), BOD 1060–1664 (1347.17±73.68), COD 3025-4982 (4029.83±163.56), TH 2200-3417 (2794.50±136.49) and only pH levels were lower 4.4-8.8 (7.01±0.491) in tannery effluent]. The high levels of heavy metals were analyzed that might become a major source of pollution which affect the aquatic environment. The management of tannery effluent's physicochemical parameters and its impact on the aquatic environment involves a combination of regulatory, technological, and educational approaches. It requires a multi-faceted effort to mitigate environmental harm while supporting the tanning industry's sustainable development.

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“…Knowledge of the quantitative and qualitative parameters of wastewater allows to estimate the necessary degree of purification, at which discharge to a natural receiver will not deteriorate the water purity class. The problem of sewage is particularly acute in food industry, petrochemical plants, tanneries, pulp mills, dairies and sugar factories, as they pose a great threat to natural receivers [7][8][9][10][11][12][13]. The most common organic components of wastewater include proteins, carbohydrates, fats, oils, resins, dyes, phenols, petroleum products, detergents, pesticides, and synthetic polymers.…”

Section: Introductionmentioning

confidence: 99%

Carbon Adsorbents Obtained from Pistachio Nut Shells Used as Potential Ingredients of Drinking Water Filters

2023

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Water resources are increasingly degraded due to the discharge of waste generated in municipal, industrial and agricultural areas. Therefore, the search for new materials enabling the effective treatment of drinking water and sewage is currently of great interest. This paper deals with the adsorption of organic and inorganic pollutants on the surface of carbonaceous adsorbents prepared by thermochemical conversion of common pistachio nut shells. The influence of the direct physical activation with CO2 and chemical activation with H3PO4 on parameters, such as elemental composition, textural parameters, acidic–basic character of the surface as well as electrokinetic properties of the prepared carbonaceous materials was checked. The suitability of the activated biocarbons prepared as the adsorbents of iodine, methylene blue and poly(acrylic acid) from the aqueous solutions was estimated. The sample obtained via chemical activation of the precursor turned out to be much more effective in terms of all the tested pollutants adsorption. Its maximum sorption capacity toward iodine was 1059 mg/g, whereas in relation to methylene blue and poly(acrylic acid) 183.1 mg/g and 207.9 mg/g was achieved, respectively. For both carbonaceous materials, a better fit to the experimental data was achieved with a Langmuir isotherm than a Freundlich one. It has also been shown that the efficiency of organic dye, and especially anionic polymer adsorption from aqueous solutions, is significantly affected by solution pH and temperature of the adsorbate–adsorbent system.

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Assessment of the Quality of Wastewater Generated During Production at a Tannery Plant

Cited by 5 publications

References 0 publications

Water and wastewater management in a small tanning facility

Water and wastewater management in a small tanning facility

Characterization and Impact of Physicochemical Parameters of Tannery Effluent on the Aquatic Environment

Carbon Adsorbents Obtained from Pistachio Nut Shells Used as Potential Ingredients of Drinking Water Filters

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