Development of water saving technology for water supply system of industrial enterprises

Akhmetov, A A; Akhmetova, R. V.

doi:10.1088/1757-899x/134/1/012001

Cited by 2 publications

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“…One of the most important issues of environmental protection is to protect the drainage basin from contamination [11][12][13]. Important measures for the protection of water sources include industrial wastewater purification and further use of wastewater for industrial water supply [14][15]. The article describes a variant of a wastewater treatment enterprise with the subsequent return of treated water into the water system.…”

Section: Introductionmentioning

confidence: 99%

Development of water saving technology for water supply system of industrial enterprises

et al. 2021

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The object of the study is the water supply and sanitation system of an industrial enterprise. Currently, many enterprises do not use the treated industrial waste water in the water supply cycle. Therefore, the use of treated wastewater is of practical importance. The scheme of thermal treatment of waste water for obtaining pure condensate by evaporation is proposed. The main results of the study are the technical solution for the development of the enterprise's wastewater treatment complex. Pure condensate is obtained in an instant boiling evaporator. The research method is based on the calculation of energy costs in wastewater treatment for different types of waste water. The results of the study allow us to determine the optimal set of energy equipment for obtaining pure condensate and its further use. The specific practical significance lies in the development of a technical solution that helps the treatment of wastewater and the reduction of emissions into the water basin.

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Section: Introductionmentioning

confidence: 99%

Development of water saving technology for water supply system of industrial enterprises

et al. 2021

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The Use of Hydrogen Peroxide and Hydrazine Sulfate for Removal of Chromium from Electroplating Effluents

Anikin

Makovskaya

Shilkov

2021

SSP

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The use of hydrogen peroxide and hydrazine sulfate for the treatment of chrome-containing rinsing waters of galvanic production of machine-building enterprises is proposed. The process of reducing chromium (6+) to (3+) from rinsing waters with a concentration of 8.55 mg/dm3 was studied. These reagents allow reducing more than 99% of chromium (6+) to chromium (3+) and maintaining a low salt content of treated wastewater. The consumption of hydrogen peroxide is 1.5 mg/dm3, and the consumption of hydrazine sulfate is 10 mg/dm3. The current situation in the treatment of galvanic wastewater leads to pollution of the environment with dangerous substances (CN-, Cr6+, F-, Cd2+), irrational use of raw materials and significant economic losses. The possibility of extracting valuable components from wastewater, in order to recycle them and return the treated water to production, is considered. Hydrogen peroxide is effective for treating acidic wastewater, and hydrazine sulfate can be used for both acidic and alkaline wastewater. Removal of excess hydrogen peroxide from the solution after reduction of chromium (6+) before precipitation of chromium (3+) hydroxide is required. The toxicity of hydrazine compounds must be taken into account.

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Development of water saving technology for water supply system of industrial enterprises

Cited by 2 publications

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Development of water saving technology for water supply system of industrial enterprises

Development of water saving technology for water supply system of industrial enterprises

The Use of Hydrogen Peroxide and Hydrazine Sulfate for Removal of Chromium from Electroplating Effluents

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