CN203079797U - Oilfield sewage microbiological treatment combined device - Google Patents

Abstract

The utility model discloses an oilfield sewage microbiological treatment combined device which comprises an air flotation oil collection device main body, wherein the upper part of the air flotation oil collection device main body is horizontally connected with a scraper; the middle part of a box body is filled with a coalescent pack, and a mud scraper is arranged below the box body; a left pipeline of the box body is communicated with a dissolved air tank through a dissolved air releaser; the dissolved air tank is communicated with an air source; a liquid atomizer is arranged in the dissolved air tank; the liquid atomizer is communicated with a dissolved air water pump; the dissolved air water pump is communicated with the middle part of the right side, and the output water on the upper side is communicated with a bioreactor main body; a water distribution device is arranged at the top end of the bioreactor main body, an aeration system is arranged at the lower end, and an inner cavity is filled with biological special filler; a reactor is communicated with a solid-liquid separation device main body through a pipeline, and the middle part of the right side is communicated with the outside through a pipeline; and other characteristics of the solid-liquid separation device main body structure are the same as those of the air flotation oil collection device main body. The device disclosed by the utility model does not need dosing, realizes good and stable water quality after treatment, and improves the degradation rate of oils and other organisms; and the final sludge can be discharged by landfill, and secondary pollution is basically avoided.

Description

Oilfield sewage microbiological treatment associated plant

Technical field

The utility model relates to the disposing polluted water in oil device, specifically oilfield sewage microbiological treatment associated plant.

Background technology

General biologic treating technique is after handling oilfield sewage, all carrying out the physics sedimentation handles, be used for removing the biological sludge of water body, in life, industrial sewage, generally all establish second pond after biochemical treatment, its second pond type has: rectangular sedimentation tank, radical sedimentation basin, inclined-plate clarifying basin etc.

At oilfield sewage, especially in the processing of polymer-containing sewage in oil field, because the water medium viscosity is bigger, the part mycoderm of bio-chemical effluent, its density approaches water body density, and by natural subsidence or shallow layer settling, still having suspended substance greatly can't separate from water body.

Summary of the invention

In order to solve the problem that oil field oil-containing polymer-bearing waste-water technical background exists, the utility model provides oilfield sewage microbiological treatment associated plant.This device utilizes " aerobe treatment technology+air flotation technology ", the combination process flow process, because air flotation technology has good removal effect to the suspended substance that approaches water-mass density, and, suspended substance volume after biological treatment system is handled increases the come-up that also is more conducive to suspended substance in the air supporting processing, thereby has reached the lower purpose of the more conventional natural sedimentation of final outflow water suspension content.

The technical solution of the utility model is: this oilfield sewage microbiological treatment associated plant comprises air supporting oil-collecting device main body, air supporting oil-collecting device main body is the square box of a no loam cake, the casing upper level is connected with the scraper plate machine, the one end scraper plate outside of scraper plate machine is furnished with weir plate, oil removal by air bubbling apparatus main body inwall connected horizontal direction before weir plate was positioned at, L-shaped and preceding oil removal by air bubbling apparatus main body left side wall panel is tightly connected, on the air supporting oil-collecting device main body wallboard of " L " of weir plate shape inboard, oil exit pipe and extraneous UNICOM are arranged, the casing middle part of air supporting oil-collecting device main body is filled with coalescent pack, be connected with mud scraper in the back taper space of coalescent pack below, the casing left side central portion of air supporting oil-collecting device main body has pipeline and extraneous UNICOM, this unicom pipeline has a "T"-shaped joint by dissolved air release UNICOM dissolving, dissolving entrance end UNICOM source of the gas, dissolving entrance end internal layout has liquid atomiser, liquid atomiser has pipeline UNICOM dissolved air water pump discharge, the dissolved air water pump inlet has pipeline UNICOM air supporting oil-collecting device main body right side central, and the upside at this UNICOM position has the lower end of pipeline UNICOM bio-reactor main body; The bio-reactor main body is the square box of a uncovered, there is water-distributing device on the casing top, water-distributing device and oil removal by air bubbling apparatus main body have pipeline UNICOM, the lower end planar cloth of bio-reactor is equipped with aerating system, aerating system and source of the gas UNICOM, bio-reactor main body inner chamber is filled with biologic packing material, the upper end of bio-reactor main body, be furnished with horizontal weir plate with an air supporting oil-collecting device main body UNICOM opposite side, the wallboard of the bio-reactor main body of weir plate inboard has pipeline UNICOM equipment for separating liquid from solid main body, this pipeline is in equipment for separating liquid from solid main body left side central portion UNICOM with it, equipment for separating liquid from solid main body right side central has pipeline and extraneous UNICOM, and other features of equipment for separating liquid from solid agent structure are identical with air supporting oil-collecting device main body.

In the such scheme, the biologic packing material volume is not less than 80% of bio-reactor body volume.

The utlity model has following beneficial effect: the air supporting oil-collecting device is removed 95% above free oil and the part oil in water emulsion in the water, and the suspended substance in the corresponding removal water; Bio-reactor rely on finished product ZYEM microbial inoculum under aerobic condition to water in the special Degradation of oily substance and other organic pollutants, with the organic pollutant degraded in the water, product part is as the constitute of bacterium self growth in the middle of it, and part is degraded fully, finally produces H ₂O and CO ₂, the energy that biochemical reaction produces is supplied with the bacterial growth breeding, thereby removes residue oil in water emulsion and part organic suspension thing in the water.The water outlet oil-contg is below 10mg/l;

Then under the adsorption of the filler mycoderm that is full of biological treatment system, quilt is glued to stick, is wrapped in the mycoderm layer for other inorganic suspended substance and a small amount of organic suspension thing.And finally in flora normal metabolic process, enter water body with the mycoderm that comes off, form suspended substance in the water.The suspended substance volume is less in the water before the biological treatment, inconvenience come-up, and biosystem is handled the suspended substance in the water outlet of back, and mainly based on the bulk mycoderm that comes off, volume increases.

In the water quality after preceding two sections processing, the composition structural changes of pollutent is: oil-contg is reduced to below the 10mg/l; The suspended substance main composition is converted into based on the bulk mycoderm that comes off by small particulate matter, and its lineal measure increases to more than the 3mm.After this changed, under the effect of equipment for separating liquid from solid, oil-contg further reduced in the water.Owing to suspended substance volume in the water increases, after the dissolved air water bubble formed, the number of bubbles that is adsorbed on the suspended substance increased, and has strengthened the buoyancy of suspended substance, thereby has been easier to emerge from water body simultaneously.

In sum, this oilfield sewage microbial treatment device has the dosing of need not by the novel applied in any combination by " air flotation technology+aerobe treatment technology+air flotation technology ", and it is good to handle back water quality, improve oils, degradation effect of organic compound, the characteristics that regenerant is easy to recycle.

Description of drawings

Fig. 1 is a schematic flow sheet of the present utility model.

Among the figure 1, dissolving; 2, liquid atomiser; 3, source of the gas; 4, the dissolved air water pump; 5, oil exit pipe; 6, dissolved air release; 7, the swash plate filler; 8, the scraper plate machine; 9, mud scraper; 10, the bio-reactor main body; 11, weir plate; 12, biologic packing material; 13, aeration head; 14, water-distributing device; 15, air supporting oil-collecting device main body; 16, the equipment for separating liquid from solid main body.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

By shown in Figure 1, this oilfield sewage microbial treatment device is by the air supporting oil-collecting device, bio-reactor and equipment for separating liquid from solid combine, comprise air supporting oil-collecting device main body 15, air supporting oil-collecting device main body 15 is the square box of a no loam cake, the casing upper level is connected with scraper plate machine 8, the one end scraper plate outside of scraper plate machine 8 is furnished with weir plate 11, weir plate 11 is positioned at air supporting oil-collecting device main body 15 inwalls and connects horizontal direction, L-shaped and air supporting oil-collecting device main body 15 left side wall panel are tightly connected, oil exit pipe 5 and extraneous UNICOM are arranged on air supporting oil-collecting device main body 15 wallboards of " L " of weir plate 11 shape inboard, the casing middle part of air supporting oil-collecting device main body 15 is filled with swash plate filler 7, be connected with mud scraper 9 in the back taper space of swash plate filler 7 belows, the casing left side central portion of air supporting oil-collecting device main body 15 has pipeline and extraneous UNICOM, this unicom pipeline has a "T"-shaped joint by dissolved air release 6 UNICOM's dissolvings 1, dissolving 1 entrance end UNICOM source of the gas 3, dissolving 1 entrance end internal layout has liquid atomiser 2, liquid atomiser 2 has 4 outlets of pipeline UNICOM dissolved air water pump, 4 imports of dissolved air water pump have pipeline UNICOM air supporting oil-collecting device main body 15 right side central, and the upside at this UNICOM position has the lower end of pipeline UNICOM bio-reactor main body 10;

Air supporting oil-collecting device cardinal principle is air and water under-fixed pressure condition, make gas in dissolving 1, dissolve in the water greatly, make every effort to be in state of saturation, then formed pressure air-dissolving water is discharged by dissolved air release 6, produce a large amount of micro bubbles, fully contact with oil and suspension flco thereof in the water, make that oil droplet sticks on the microbubble in the water, climb up on top of the water with bubble, the formation oil reservoir also scrapes off, thereby purify water, the heavy suspended substance in the sewage is discharged by mud scraper 9 by swash plate filler access to plant bottom.。

Bio-reactor main body 10 is the square box of a uncovered, casing lower end planar cloth is equipped with water-distributing device 14, water-distributing device 14 has pipeline UNICOM with air supporting oil-collecting device main body 15, the upper end planar cloth of water-distributing device 14 is equipped with some aeration heads 13, aeration head 13 and source of the gas 3 UNICOMs, bio-reactor main body 10 inner chambers are filled with biologic packing material 12, the upper end of bio-reactor main body 10, be furnished with horizontal weir plate 11 with air supporting oil-collecting device main body 15 UNICOMs opposite sides, the wallboard of the bio-reactor main body 10 of weir plate 11 inboards has pipeline UNICOM equipment for separating liquid from solid main body 16, and biologic packing material 12 volumes are not less than 80% of bio-reactor main body 10 volumes.

The ZYEM bio-reactor is to be support with ZYEM high-performance bio microbial inoculum, the equipment of organic impurity in the degradation water.ZYEM high-performance bio microbial inoculum (hereinafter to be referred as the ZYEM microbial inoculum) is a kind of selected in various dominant microfloras, domestication under given conditions, and concentrate processing and the series of biologic product of generation.At the difference of various water quality pollutants, be provided with the microbial inoculum that many moneys have efficient obligate processing capacity, can carry out high performance degraded to pollutents such as various organism, suspended substance, COD in the water quality respectively.The ZYEM microbial inoculum can be recovered under the suitable situation of reasonable ratio environment fast, and breeds rapidly, forms the high efficient mixed flora, and organic objectionable impurities in the water is carried out fully effectively degraded, and part inorganic impurity in the planar water, thereby plays the effect that purifies water.The ZYEM biological flora has characteristics such as stability is strong, biological activity is high, startup is fast, debugging cycle is short.The ZYEM flora need not add other medicaments under the water quality normal circumstances, and can keep high biological activity for a long time, and should not morph.

This pipeline is in equipment for separating liquid from solid main body 16 left side central portion UNICOM with it, equipment for separating liquid from solid main body 16 right side central have pipeline and extraneous UNICOM, other features of equipment for separating liquid from solid main body 16 structures are identical with air supporting oil-collecting device main body 15, because both water quality treatment situation differences, the profit flotation is mainly removed the oil in the former water, and also not obvious to the suspended substance removal effect in the water under the situation of not dosing.The solid-liquid flotation is then because after biosystem was handled, oil-contg reduced in the water, and suspended substance is the biological mycoderm to come off also, and the mycoderm body that comes off is big, and the effect float downward that the utmost point is beneficial at micro-bubble forms scum silica frost discharge water body.After changing different hydraulic load and other design variables, equipment for separating liquid from solid is mainly used in to be removed the suspended substance in the water.

Claims (2)

1. oilfield sewage microbiological treatment associated plant, comprise air supporting oil-collecting device main body (15), it is characterized in that: air supporting oil-collecting device main body (15) is the square box of a no loam cake, the casing upper level is connected with scraper plate machine (8), the one end scraper plate outside of scraper plate machine (8) is furnished with weir plate (11), weir plate (11) is positioned at air supporting oil-collecting device main body (15) inwall and connects horizontal direction, L-shaped and air supporting oil-collecting device main body (15) left side wall panel is tightly connected, oil exit pipe (5) and extraneous UNICOM are arranged on air supporting oil-collecting device main body (15) wallboard of " L " of weir plate (11) shape inboard, the casing middle part of air supporting oil-collecting device main body (15) is filled with swash plate filler (7), be connected with mud scraper (9) in the back taper space of swash plate filler (7) below, the casing left side central portion of air supporting oil-collecting device main body (15) has pipeline and extraneous UNICOM, this unicom pipeline has a "T"-shaped joint by dissolved air release (6) UNICOM's dissolving (1), dissolving (1) entrance end UNICOM source of the gas (3), dissolving (1) entrance end internal layout has liquid atomiser (2), liquid atomiser (2) has pipeline UNICOM dissolved air water pump (4) outlet, dissolved air water pump (4) import has pipeline UNICOM air supporting oil-collecting device main body (15) right side central, and the upside at this UNICOM position has the lower end of pipeline UNICOM bio-reactor main body (10);

Bio-reactor main body (10) is the square box of a uncovered, there is water-distributing device (14) on the casing top, water-distributing device (14) has pipeline UNICOM with air supporting oil-collecting device main body (15), the lower end planar cloth of bio-reactor is equipped with aeration head (13), aeration head (13) and source of the gas (3) UNICOM, bio-reactor main body (10) inner chamber is filled with biologic packing material (12), the upper end of bio-reactor main body (10), be furnished with horizontal weir plate (11) with air supporting oil-collecting device main body (a 15) UNICOM opposite side, the wallboard of the bio-reactor main body (10) that weir plate (11) is inboard has pipeline UNICOM equipment for separating liquid from solid main body (16), this pipeline is in equipment for separating liquid from solid main body (16) left side central portion UNICOM with it, equipment for separating liquid from solid main body (16) right side central has pipeline and extraneous UNICOM, and other features of equipment for separating liquid from solid main body (16) structure are identical with air supporting oil-collecting device main body (15).

2. according to the described oilfield sewage microbiological treatment of claim 1 associated plant, it is characterized in that: biologic packing material (12) volume is not less than 80% of bio-reactor main body (10) volume.

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