Reduction of water consumption during dredge development of placer deposits

An assessment of the impact of dredging works on water resources is given. The main ways to reduce water consumption during dredging mining of placer deposits are considered. The analysis of the equation of water balance of technological reservoirs of dredges in various mining and technical and climatic conditions is carried out, the division of its components into groups is carried out according to the possibility of their regulation. The results of calculations of the input and output parts of the water balance of ten dredge sections are presented. The degree of influence of the geological and permafrost characteristics of the placer on the water balance and the main reasons for the increased level of water consumption at dredging works have been established. The components of the water balance that can be regulated in wide ranges are highlighted. It has been established that it is possible to significantly reduce water consumption and wastewater discharge during the dredging of placers by regulating the water level in the technological reservoir, which is more effectively carried out by reducing the parameters of the latter and the adjacent catchment areas. It was revealed that in many drainage sections, the actual water consumption significantly exceeds the water inflow necessary for clarification and maintenance of the design level. Ways to reduce water consumption and wastewater, a significant part of which is filtration leaks, are proposed.

Keywords: Placer deposits, dredging works, water balance, water consumption, regulation of inflow, water level control, filtration leaks, wastewater discharge.
For citation:

Murzin N. V., Talgamer B. L. Reduction of water consumption during dredge development of placer deposits. MIAB. Mining Inf. Anal. Bull. 2022;(5—2):22—30. [In Russ]. DOI: 10.25018/0236_1493_2022_52_0_22.

Issue number: 5
Year: 2022
Page number: 22-30
ISBN: 0236-1493
UDK: 622.271.5; 628.171
DOI: 10.25018/0236_1493_2022_52_0_22
Article receipt date: 01.10.2021
Date of review receipt: 29.03.2022
Date of the editorial board′s decision on the article′s publishing: 10.04.2022
About authors:

Murzin N. V.1, Junior Researcher of Research Unit,, e-mail:;
Talgamer B. L.1, Dr. Sci. (Eng), professor, Head of Department,, e-mail:;
1 INRTU, 664074, Irkutsk, Lermontova st. 83, Russia.


For contacts:

Murzin N. V., e-mail:


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