CN1031128C

CN1031128C - Surface water treating method and device

Info

Publication number: CN1031128C
Application number: CN 92100740
Authority: CN
Inventors: 徐景颖; 戴有慈
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-01-31
Filing date: 1992-01-31
Publication date: 1996-02-28
Anticipated expiration: 2007-01-31
Also published as: CN1067871A

Abstract

The present invention relates to a treating method and a device for turbidity removal of surface water. The settling method used in the existing sloping tube (sloping plate) settling pool, and the air floating method used in an air floating pool are integrated; according to different seasons, a turbidity removal pool respectively adopts the settling method or the air floating method to complete turbidity removal; in order that one pool can adopt to different methods, multiple auxiliary devices, such as an aeration device arranged in a reaction pool, a water passage provided with plastic fillers, a water flow conversion gate plate arranged between the reaction pool and a separation pool, etc. are additionally arranged in the turbidity removal pool. Through the technical method, the turbidity removal treatment of the pool body is decreased by 40% and flocculating agents are decreased by 30%.

Description

A kind of surface water treating pond

The invention belongs to separation technology field, more specifically say so and adopt general physics and chemical process to handle the surface water technology.

Treating pond, the i.e. air flotation pool of air supporting method and the settling bowl of settling process that two kinds of forms are arranged handled in existing surface water turbidity removal.Air flotation pool is applicable to low temperature (below 15 ℃), low turbid (100 degree are following) or the prolific water body of bath class.This is because formed flco density is less, and adheres to bubble, easily rises the cause that is difficult for falling in water.Settling bowl is applicable to high temperature, high turbid water body, and the flco density that form this moment is big, easily heavy being difficult for rises.Air flotation pool and settling bowl common ground structurally is: a molten water is all arranged and the pond body of treatment facility is installed, whole pond body is all by dividing plate or tracery wall separated into two parts, i.e. flocculation tank and water, flco separate tank.The structure of reaction tank is basic identical, different mainly be the isolating separate tank of water and flco.Air flotation pool is clear mud on top.The following separate tank of scraping machine is the sky pond except water; And settling bowl clear mud at the bottom of the pond, and swash plate or inclined tube are installed in the pond, the separate tank part of two kinds for the treatment of ponds all accounts for the overwhelming majority in entire treatment pond again.That is to say that two kinds of distinguishing places for the treatment of pond almost account for whole pond body, so cause setting up respectively of two kinds for the treatment of ponds.To the water body at a certain concrete water source is that difference along with season has considerable change, in the bigger place of summer in winter difference variation,, more reasonably be that air flotation pool and settling bowl are used alternatingly on method as the north of China, be to use settling bowl, winter air flotation pool summer.Though the way that two ponds of this usefulness are used alternatingly has adapted to condition of water quality, cause the idle of a treating pond.And this treating pond all is bulky, investment number height, thereby two ponds are used alternatingly unreasonable economically.Some places feel to build two cover pond waste investments, just adopt and build a pond of strengthening some, adopt many throwing flocculation agents and increase the incompatibility that disengaging time solves treatment process and condition of water quality, use the whole year a kind of pond type to handle surface water, this way obviously also is irrational economically.Those skilled in that art feel it would be desirable with a pond and use air supporting and two kinds of methods of sedimentation to handle surface water according to the condition of water quality conversion.In the treatment technology of adjacent industry and sanitary sewage, existing air-floating apparatus and sedimentation device are installed in form in a container or the pond, make processed water through air supporting, two kinds of method step-by-step processing of sedimentation, the content of being put down in writing as RUSSP technology SU1139709, SU1397412, SU1446113.But this two kinds of methods of carrying out in a pond, on device structure, come down to a kind of stack, because each step of every kind of method all is independently to finish in space separately respectively, as occupy the separate part for the treatment of pond overwhelming majority spatial flcos and water, the documents that provides all is that dissolved air flotation is in the locus without any device, the settlement separate locus that swash plate or inclined tube are housed at another place, if this structure is diverted on the surface water treatment technology, just need builds a volume and approach the treating pond that branch is built two kinds of pond sums.This gets back to again on the old road of building two cover ponds in itself.And because the water quality of surface water is very big with seasonal variation aspect grading at temperature, impurity, one-tenth, it is stable like that to can not show a candle to industry and sanitary sewage, two kinds of methods are simultaneously and with handling surface water no matter winter, summer, wherein must have a kind of method because of incompatibility should season water quality be in inefficient state.Thereby this being incorporated in the surface water processing do not have much meanings.

The objective of the invention is to provide a kind of surface water treating pond that can be used alternatingly air supporting and two kinds of methods of sedimentation, and the volume that makes treating pond approaches the pond body volume of a treating pond of original single method, the also substantially the same equipment when two kinds for the treatment of pond branches are built of the equipment that is adopted in the pond.

Technology of the present invention constitutes, a pond body that holds water and treatment facility is installed is arranged, pond body water intake end is established water inlet, establish one and cross water board or tracery wall accounting for Chi Changsan/place from water inlet, the entire treatment pond is divided into the reaction tank of water intake end and the separate tank of water side, form with prior art in reaction tank is installed required dissolving and the reliever of the gentle float glass process of flap, foam removal groove and the scraping machine that the air supporting method needs is installed on separate tank, inclined tube or swash plate are installed in the separate tank middle and upper part, the mud scraper that settling process needs are installed in bottom, entire treatment pond.

It more than is surface water treating pond basic fundamental content of the present invention.

Adopt positively effect of the present invention to be, original air supporting and two kinds of surface water treating ponds of sedimentation are fused into a treating pond that can be used alternatingly air supporting and sedimentation method, core of the present invention place is exactly the sepn process of flco and water during with settling process and all is at same position with the sepn process of air supporting method flco and water, promptly be equipped with on the position of swash plate or inclined tube and carry out, broken the convention of devices such as swash plate or inclined tube can not be arranged in the dissolved air flotation pond.Facts have proved, the existence of inclined tube or swash plate more helps air supporting than empty pond in the separate tank, therefore make the pond body of this treating pond only be equivalent to a treating pond of original a kind of method, each treatment unit in the pond does not increase basically yet, brought thus and can be used alternatingly corresponding treating method by condition of water quality, build a pond body that accounts for the investment overwhelming majority again less, also simple than two kinds for the treatment of ponds, the merging that does not reduce volume reduces nearly half pond body.

In order to make the present invention be higher than prior art, in reaction tank of the present invention, set up one group of aeration disk and be the packing groove of filler with the acrylic plastering ring to face of land water treatment effect.

The effect of setting up these two kinds of devices is: aeration can improve flocculation, the effect of packing groove is to obtain huge surface in contact to amass and form nearly wall current, improve velocity slope and bring into play the efficient waterpower function of little vortex, thereby can save 30% flocculation agent and improve and remove chromatic effect.

Accompanying drawing 1 is an inclined tube-type surface water treating pond of the present invention.

Accompanying drawing 2 these ramp type surface water treating ponds of the present invention.

Enforcement of the present invention and working process be, the water yield of Chu Liing is as required determined the size of pond body 1, and as handling 50,000 tons every day, then the pond body should be length and width, deeply respectively be 20 meters, 8 meters, 4.5 meters.The body water intake end is established water inlet 2 in the pond, on the position that accounts for whole pond long 1/3rd from water inlet, establish flashboard 8 or tracery wall 16, flashboard is made with steel plate, sling with wireline, by folding and unfolding wireline control, alternately open and close outlet pass 9,10, tracery wall is identical with the tracery wall of ramp type settling bowl in the prior art.The separate tank that the entire treatment pond is divided into flocculation tank and flco and water by flashboard or tracery wall, in reaction tank, resemble and flap 5 is installed the prior art, dissolving 6 is installed outside the pond, reliever 7, the structure of molten device jar and reliever and the same prior art of mounting means are installed in the pond.At the inclined tube 11 of installation at the middle and upper levels or the swash plate 17 of separate tank, the structure of inclined tube or swash plate and mounting means are with reference to the prior art of settling bowl.At the separate tank water surface site required foam removal groove 12 and the scraping machine 13 of air-float method is installed, its structure and mounting means are with the known technology of air flotation pool, mud scraper 18 is installed at the bottom of the treating pond pond, the structure of mud scraper and mounting means are identical with settling bowl in the prior art, aeration disk 3 is installed in treating pond foremost, link to each other with dissolving with pipeline, the aeration disk can be set up in parallel 8.Packing groove surrounds at the bottom of by partition wall and screen cloth, and interior dress acrylic plastering ring makes it to be full of the passage sections of whole water.

The treating processes of water in this treating pond is: when using air supporting method treating water, water enters treating pond by water-in 2, adds flocculation agent, aeration disk aeration, the packing section of flowing through again.Because the huge surface in contact and the efficient waterpower function of little vortex of packing section, strengthen the flocculation function greatly, water is after passing through packing section, again through one section further flocculation of flap is arranged, discharge dissolved air water by reliever to the water that flows into separate tank again, processed water from flashboard top or tracery wall flow into separate tank, water dissolved air flotation in the space of swash plate or inclined tube that had flco to form this moment, water flows out from water outlet 14, flco come-up concentrates in the foam removal groove on the water surface, remove with scraping machine again, discharge from spoil disposal pipeline 15.

When using settling process, the process of flowing through and the air supporting method of water are basic identical, and difference only is that reliever do not work, and flco is reduced in separate tank at the bottom of the pond, removes with mud scraper then, from 15 discharges of spoil disposal pipeline.

Below promptly finish treating pond structure of the present invention and use air supporting, two kinds of methods of sedimentation are used alternatingly the implementation process of handling surface water.

Claims

1, a kind of surface water treating pond, comprise pond body (1), water-in (2), flap (5), dissolving (6), reliever (7), flashboard or tracery wall (8,16), inclined tube or swash plate (11,17), scraping machine (13), mud scraper (18), water outlet (14), it is characterized in that: be provided with between reaction tank and the separate tank can change water from or enter down the flashboard (8) of separate tank, initial segment at reaction tank is provided with the aeration disk (3) that communicates with conduit and gas tank, and the packing groove (4) that is made of partition wall and net bottom that loads filler is arranged in the reaction tank stage casing.