RU2200135C2 - Reactor for additional purification of natural and sewage water - Google Patents

Abstract

FIELD: deep water purification equipment. SUBSTANCE: reactor has open corridor-type reservoir divided by transverse partitions into chambers, basic water inlet pipe and treated water outlet pipe, filtering blocks, aerators located in each chamber under filtering blocks and at opposite reservoir walls in aeration sections. Filtering blocks arranged at aeration section and filtration section boundary line are equipped with side surface facing toward aeration section and composed of rigid bristle brushes or lines arranged at pitch 10% smaller than diameter of rigid bristle brush. All filtering blocks are provided with central tube extending through the entire height of block and with two hooks positioned on block upper face and adapted for holding of filtering blocks. Rails for moving beams with cables and hooks are secured to opposite partitions along reactor corridors. Reactor is designed for removal of suspended substances and solved organic and mineral contaminants from natural and sewage water by biological adsorption and adhesion processes and may be used in municipal management and in industrial enterprises. EFFECT: improved reactor operation process, reduced metal usage, wider range of employment of reactor without use of microorganisms. 2 cl, 3 dwg

Description

 The invention relates to devices for deep purification of natural and waste waters, in particular for the removal of suspended solids and dissolved organic and mineral impurities due to biological adsorption and adhesive processes, and can be used in municipal utilities of cities and industrial enterprises.

 It is known to use floating containers with a ruffled nozzle for holding microorganisms in aeration tanks [1]. The advantage of such blocks for bioreactive devices is the ability to move them in the tank, low material consumption design and ease of operation. Without disabling the entire structure, it is possible to inspect and repair or overhaul the unit. At the same time, the area of use of such floating containers with a ruffled nozzle is only aeration tanks. In reactors where emptying the tank is necessary during the regeneration of the brush nozzle, floating containers are not applicable, since when emptying, they will add up and become entangled by their elements.

 The closest in technical essence and the achieved effect is a multi-stage aerotank-displacer [2], containing an open corridor-type tank divided by transverse baffles into chambers, a pipe for inlet of the source water and a pipe for the release of treated water, filter blocks with a fibrous nozzle for holding microorganisms and suspended solids, aerators placed in each chamber under the filtering blocks and at opposite walls of the tank in the aeration compartments.

 The disadvantages of the known device are the high material consumption of the design of the filtering units and the complexity of operation, since in order to carry out repair work of the filtering units, it is necessary to completely shut down the structure, free it from water, and operate the operators inside the tank in unsanitary conditions with heavy and bulky filtering units. In addition, the scope of the known facilities is limited to biological wastewater treatment.

 The purpose of the invention is to improve the operation of reactors for water purification, reducing its material consumption, expanding the scope of the device for water purification without the use of microorganisms.

 The presence of signs: supply, execution, relative position, providing a significant change in the capabilities of the proposed device, meets the criterion of "novelty."

 Analysis of the identified distinctive features from the prototype of the features showed that such or similar features in known technical solutions with the manifestation of the same capabilities were not found, which allows us to conclude that the claimed device meets the criterion of "significant differences".

 In FIG. 1-3, the proposed arrangement of the reactor for the purification of natural and wastewater, a plan and a section along the cross section of the corridor, a perspective view of the filter unit are schematically presented.

 The reactor consists of an open tank 1 of the corridor type, divided by transverse partitions 2 into chambers, a pipe 3 for inlet of the source water and a pipe 4 for the release of treated water, filter units 5 with a fiber nozzle 6 for holding microorganisms, solids or adsorbent, aerators 7, placed under the filtering blocks of the filtration compartments and at the opposite walls of the tank in the second aeration compartments, beams 8 on the rails 14 and cables with hooks 9, holding the filtering blocks 5 in suspension, pins 10, fixing 5 blocks in the space of the tank volume due to the central tube 11, the filter units 5, the locking devices 12 on the beams 8 and slots 13 in the tank bottom. The lateral surface of the filtering blocks facing the aeration compartment II is made of hard ruffles made of bristles or fishing lines and the extreme ruffles are placed in increments 10% smaller than their diameter.

 The blocks are equipped with a central pipe for the entire height of the block and two hooks on the upper edge of the block; rail tracks are fixed along opposite walls along the reactor corridor to move the beams with cables and hooks holding a number of filter blocks.

 Filter blocks are fixed in the reactor volume by a rod passing through the central tube of the block, a hole with a clamp in the beam, and a socket in the bottom of the tank.

 The reactor operates as follows. Water through the pipe 3 is introduced into the tank 1 and is drawn in by air from the aerators 7 located near the longitudinal enclosing walls of the corridor of the tank 1 in a rotational movement across the corridors of the tank. At the same time, water moves down in the filtration compartments I, and water rises up in the aeration compartments II. Microorganisms held on the fibrous nozzle 6 of the filter blocks 5, or adsorbents deposited on the fibrous nozzle 6 until the purified water passes, clean the water from contamination. The filter blocks 5 are held in fixed places in the volume of the tank 1 using beams 8, on rails 14, cables 9, central pipes 11, locking devices 12 and sockets 13 for pins 10. The purified water flows from the reactor through pipe 4.

 As the filter blocks become contaminated with water impurities, their regeneration is organized by means of air-water washing. During the regeneration period of the nozzle of the filter blocks through the aerators 7, air is supplied under the filter blocks and the tank 1 is emptied from the water. The aerators 7 under the filter blocks are turned on only during the regeneration of the nozzle, and they are turned off during the water treatment period.

 In the proposed reactor design, repair and maintenance of filtering units is much simpler and does not require a shutdown of the entire reactor. With the help of a crane, it is possible to raise the beam together with filtering blocks and pins and carry out maintenance or overhaul at a special installation site outside the reactor. Since the filter blocks are suspended on cables, their weight is transferred to a beam located outside the water, and the blocks themselves are pushed out of the water by hydrostatic pressure. During the regeneration of the nozzle, the air additionally weighs the filter blocks, so their design can be facilitated. The lateral surface of the filter blocks facing the aeration compartment II is not made of solid sheet, but is made of hard ruffs made of fishing line or bristles with a step 10% smaller than the diameter of the ruffs, which significantly facilitates the weight of the filter block without affecting the hydrodynamics of the air-water flow compartment aeration II and fluid circulation through the filtration compartment I. Analysis of the forces performed on the experimental filter blocks showed that the material consumption of the frame of the blocks can be reduced by almost 3 times without reducing their durability, etc. chnosti.

 The possibility of a simplified replacement of filter blocks during operation allows us to expand the scope of the reactor for treating both waste and natural waters during periods of various impurities in the source water. The filter blocks with a fibrous nozzle can be modified with attached microorganisms, pulverized activated carbons, zeolites or special ion-exchange fibers.

Information sources
1. Intensification of biological wastewater treatment in other spores. M. I. Kulikov and i. Visnik. System Engineering and Technogenic Bezpec in Budapest. 99-9 (17). S. 3-6. 1999. DABA.

 2. Copyright certificate of the USSR 1463721, A1, 4C 02 F 3/02. From 02.21.85. Bull. 9 from 07. 03. 89. Multistage aerotank-displacer. N.I. Kulikov et al.

Claims (2)

 1. The reactor for the purification of natural and waste water, containing an open corridor-type tank divided by transverse baffles into chambers, a pipe for inlet of source water and a pipe for discharging treated water, filter blocks, aerators placed in each chamber under the filter blocks and at opposite walls of the tank in aeration compartments, characterized in that the filtering units located on the border of the filtration compartment and the aeration compartment are made with a side face facing the aeration compartment from rigid bristles or fishing lines and with a step 10% smaller than the diameter of the brush, all filter blocks are provided with a central pipe for the entire height of the block and two hooks on the upper edge of the block, rail tracks are fixed along opposite walls along the reactor corridor to move the beams with cables and hooks holding a number of filter blocks .  2. The reactor according to claim 1, characterized in that the filter blocks are fixed in the reactor volume by a rod passed through the central tube of the block, a hole with a clamp in the beam and a socket in the bottom of the tank.

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