SU1585297A1 - Water treating method - Google Patents

Abstract

The invention relates to methods for the purification of natural and waste waters, can be used in water treatment for household needs and allows an increase in the degree of water purification. For the implementation of the method, water treated with coagulum — aluminum sulfate at a dose of 10 mg / l, with a flow rate of 180 l / h, is fed to the lower part of the clarifier with a layer of suspended sediment, after which water is fed to a filter loaded with quartz sand. A solution of ammonium carbonate with a dose of 1–5 mg / l is introduced into the middle part of the layer of suspended sediment. The degree of water purification increases from 35.3 to 41.2-50.6%, depending on the dose of ammonium carbonate. 1 tab.

Description

(21) 4434990 / 23-26

(22) 02.06.88

(46) 08/15/90. Bnsh. No. 30

(71) Ukrainian State and Research Institute for the design of municipal buildings of cities

(72) V.G. Ivanov, Yu.G.Marchenko, Y.IoVolik and L.F.Rud

(53) 628.347 (088.8)

(56) Kulsky L.A., Strogach P.P. Wastewater treatment technology. Kiev .: Higher School, 1981, with „24.

(54) METHOD FOR CLEANING WATER

(57) The invention relates to methods for the purification of natural and waste waters,

can be used in water treatment for household needs and allows to increase the degree of water purification; , after which the water enters the filter loaded with quartz sand. A solution of ammonium carbonate dose of 1-5 mg / l is introduced into the middle part of the layer of suspended sediment. The degree of water purification increases from 35.3 to 41.2-50.6%, depending on the dose of ammonium carbonate. 1 tab.

Q

S

The invention relates to methods for treating natural and waste waters and can be used in water treatment for household needs.

The aim of the invention is to increase the degree of water purification.

Example. The water of the North Donets River with a temperature having a pH of 7.8, chromaticity is 25–30 degrees, turbidity of 17 mg / l and alkalinity of 4.2 mg “eq / l, treated with aluminum sulphate with a dose of 10 mg / l and consumption of 180 l / h served in the lower part of the clarifier with a layer of suspended sediment. Then the water is directed to a filter loaded with quartz sand. Ammonium carbonate solution is metered into the middle part of the suspended sediment layer.

For comparison, the purification is carried out without dosing of ammonium carbonate and with

its dosing in the lower and upper parts.

After purification, the quality of the purified water is determined.

The results of the experiments are presented in the table.

Claims (1)

From the data presented in the table, it follows that the introduction of ammonium carbonate in the middle part of the clarifier with a layer of suspended sediment can increase the degree of water purification from 35.3 to 41.2-50.6%, depending on the dose of ammonium carbonate. Invention Formula A method of purifying water, which includes treating with coagulum, clarifying it in a layer of suspended sediment, characterized in that, in order to improve the degree of purification, ammonium carbonate is introduced into the middle part of the layer. sh sd 00 01 N3 Without introduction (prototype) Middle part Middle part Middle part Top part Lower part Top part Lower part Compiled by L. Zanaveskin Editor M. Bandura Tehred L. Serdyukova Proofreader A. Obruchar Order 2302 Circulation 802 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 11.0 10.0 9.4 8.4 10.1 9.4 9.9 8.9 35.3 41.2 47.1 50.6 40.6 44.7 41.8 47.6 Subscription