SU1502485A1 - Apparatus for purification of waste water - Google Patents

Abstract

The invention relates to wastewater treatment and can be used in the biological treatment of small amounts of wastewater, especially at low initial concentrations of contaminants. The purpose of the invention is to increase the efficiency of wastewater treatment by creating conditions for retaining microflora in the aeration chamber and improving the hydrodynamics of the process. The device contains anaerobic and aeration chambers 4 and 5, a secondary settling tank 6, chute 7 and aerator 10. Sewage water through pipeline 12 enters the anaerobic chamber 4, where suspended solids are removed in chute 7. Pipeline 15 sewage water is directed to chamber 5, where it is circulated between the mesh partitions under the action of the aerator 10. Purified water is discharged through line 13. The invention reduces capital and energy costs, as well as improves the quality of the purified water. 2 Il.

Description

one

(21) 4363409 / 29-26

(22) 12/08/87

(46) 08.23.89. Bup. No. 31

(71) Central Research and Development and Experimental Institute of Engineering Equipment of Cities, Residential and Public Buildings

(72) A.F. Afanasyev, V.N. Rodin and A.P. Shipkov

(5.3) 628.356.2 (088.8)

(56) EPB Patent No. 159535, cl. C 02 F 3/28, 1985.

(54) DEVICE FOR CLEANING WASTE WATER

(57) The invention relates to wastewater treatment and can be used in the biological treatment of small amounts of wastewater, especially at low initial concentrations of contaminants. The purpose and objectives are to increase the efficiency of wastewater treatment by creating conditions for retaining the mic, pores in the aeration chamber, and improving the hydrodynamics of the process. The device contains anaerobic and aeration chambers 4 and 5, a secondary settling tank 6, chute 7 and aerator 10. Sewage water through conduit 12 enters the anaerobic chamber 4, where in the chute 7 weighed vespest are removed. Pipeline 15 sewage water is directed to chamber 5, where it circulates between the mesh partitions under the action of the aerator 10. Purified water is discharged through line 13. The invention allows to reduce capital and energy costs, as well as to improve the quality of pure water. 2 Il.

g

(L

with

Phie.1

ICG (: 1 pp green otposigt to clean with I full-time and can be 6t-iTb isp.shtoiiao with 5o.h (1Hicheskii clearing and och.shmxh waste under, especially when (PTZhskogo original concentration of ijjijix contamination.

The goal of the invention is to increase the efficiency of wastewater treatment by creating conditions and 1 1 for retaining the microflora in the aeration chamber and improving the hydrodynamics of the process.

In Fig.1 schematically shows the proposed device, the cut, in Fig.2 - the same, top view.

The device is a body 1, divided by vertical partitions 2 and 3 into an anaerobic chamber 4, an aeronautical chamber 5 and a secondary settler 6. Anaerobic chamber 4 is equipped with a built-in sedimentary} chute 7 with a semi-submersible partition 8 and a Goal slot 9. Laora chamber 5 is equipped with an aerator 10 and a number of cylindrical, non-income 1 1x to the bottom of the aeration chamber of the mesh partitions 11 installed coaxially with the aerator 10 below the water level. At ate (dm), the depth of the upper edges of the mesh partitions 11 below the water level decreases from the center to the periphery of the reaction chamber 5.

For the supply and removal of wastewater ;;: .-, the supply and 12 outlet and 13 of the pipelines, the collecting tray 14, and the pipeline 15, communicating chambers 4 and 5, are considered.

The device works in the following way.

Untreated 1a waste water flows through an inlet duct 12 into an anahe; goiter chamber 4, where weighed and floating materials are removed in the sediment trough 7. The weighted sun: the samples are deposited and through the bottom slit 9 fall to the bottom of the anaerobic chamber 4 for anaerobic digestion. H1lavaga1SHIe of the Venture of the Departure9aFotc by a submersible partition 8.

Then clarified fine water is piped (1 conduit 15 enters the aeration chamber 5 for biological purification. Simulation The supply of oxygen to the wastewater liquid is carried out by an aerator 10. Microfluoric acid is discharged with a tube) -ich (S- |. -n cleaning waste under, fyk1-ilu | ts h k.h mesh

partitions 11 in the form of Pio11lsm1ki. Setch, 1ta structure of transducer 1 1 contributes to the best fixation of microflora.

The excess mineralized biofilm separates from the mesh partitions 11 and settles to the bottom of the aeration chamber 5. Accumulation in the anaerobic and aerogun chambers 4 and 5 the sediment is periodically removed.

In operation of the aerator 10, the flow of fluid is directed from the center of the aeration chamber 5 to its periphery in such a way that a part of the flow, captured by the top protrusions of the edges of the partitions 11, is directed down between these partitions, as shown in FIG. In the center of the aeration chamber 5, a zone of reduced pressure is created and the waste water inside the central cylindrical partition rises from the bottom to the surface, i.e. a directed fluid flow is created that flushes all the surfaces of the mesh partitions 11.

The purified water from the secondary clarifier 6 is directed to the collecting tray 14 and discharged from the installation through the pipeline 13. The duration of the discharge t of waste water in aera-G1, the ion chamber, is determined by ATP according to the following formula:

35

t -

bt

Р 0 „K.

where is LO organic concentration

MIC pollution full.

(biological need

in oxygen) waste water

mg / l;

purified water concentration

mg / l;

Lt Р - specific surface set

overload docks, m

/ m

Om KN

the volume of the aeration chamber, the specific oxidative capacity of the mesh partitions, g MIC full. h temperature coefficient (1) ficient.

The invention allows one to increase the capital and energy costs, as well as to improve the quality of the purified water by creating optimal, hydrodynamic conditions for the contact of the waste water with microorganisms.

Claims (1)

Invention Formula A wastewater treatment device comprising a housing, an anaerobic and aeration chambers, an aerator, wastewater supply and discharge pipelines, characterized in that, in order to increase the efficiency of wastewater treatment by creating conditions for retaining the microflora in airgel camera and improved; and;; - the process dynamics, it is coaxially located on the development chamber of the cylindrical plexus mesh partitions, not scattered,; .11 to the bottom and firmly attached to the body and coaxially with the aerator, with jrii f height upper the baffles increase from the center to the periphery of the aeration chamber. .2