CN208471813U

CN208471813U - A kind of low-energy-waste sewage treatment unit using algae photosynthesis

Info

Publication number: CN208471813U
Application number: CN201820437341.9U
Authority: CN
Inventors: 谢未; 丁静; 陈董根
Original assignee: SHAOXING KEQIAO JIANGBIN WATER TREATMENT Co Ltd
Current assignee: SHAOXING KEQIAO JIANGBIN WATER TREATMENT Co Ltd
Priority date: 2018-03-29
Filing date: 2018-03-29
Publication date: 2019-02-05
Anticipated expiration: 2028-03-29

Abstract

The utility model discloses a kind of low-energy-waste sewage treatment units using algae photosynthesis, including UASB reactor, MBBR reactor, algal grown device and filter, the discharge outlet of the UASB reactor is connected with MBBR reactor water inlet, the discharge outlet of MBBR reactor is connected with the water inlet of algal grown device, the water outlet of algal grown device is connected by oxygen-enriched water valve with another water inlet of MBBR reactor, another water outlet of algal grown device is connected with the water inlet of filter, the discharge outlet of filter is connected by another water inlet of algae return valve algal grown device, the MBBR reactor is without aeration, heavy-oxygen-enriched water is generated only by the photosynthesis of algae in algal grown device, then heavy-oxygen-enriched water is recycled in MBBR reactor, completion meets MBBR Dissolved oxygen needed for microbiological oxidation dissolved organic matter in reactor, greatly reduces the energy consumption of sewage treatment.

Description

A kind of low-energy-waste sewage treatment unit using algae photosynthesis

Technical field

The utility model belongs to wastewater treatment equipment, more particularly, to a kind of low energy consumption sewage using algae photosynthesis Processing unit.

Background technique

Water is the Source of life of the mankind, in industrial production and daily life, can all be generated a large amount of useless Water.With the continuous growth of economic level, waste water total amount also constantly increases.Therefore, the demand of wastewater treatment is also constantly increased By force.But existing wastewater processing technology has the drawback that

First, sewage treatment energy consumption is huge.Data is shown, in the U.S., the energy-output ratio to supply water with sewage treatment Account for about the 4% of national energy-output ratio.

Second, traditional activated sludge process dephosphorization ability is weak.Many sewage plant biological phosphate-eliminatings are unable to satisfy the requirement of discharge, Dephosphorization have to be carried out using physical chemistry method, but can consume a large amount of materialization medicament again in this way, improve cost to sewage treatment.

Third, traditional activated sludge process generate a large amount of excess sludge, and Treatment of Sludge expense accounts for municipal sewage plant The 50% of operation cost.

Therefore, in order to solve the above technical problems, it is necessory to provide a kind of printing and dyeing wastewater processing equipment, to overcome existing skill The defect in art.

Utility model content

The utility model for overcome the deficiencies in the prior art, provides the benefit that a kind of phosphor-removing effect is good, sludge surplus is few With the low-energy-waste sewage treatment unit of algae photosynthesis.

To achieve the goals above, the utility model uses following technical scheme: a kind of to utilize the low of algae photosynthesis Energy consumption sewage-treatment plant, including UASB reactor, MBBR reactor, algal grown and filter, the UASB reactor It is connected with MBBR reactor, first pipe, second pipe, the second pipe is equipped between MBBR reactor and algal grown device It is equipped with an oxygen-enriched water valve, the first pipeline and the second pipeline are equipped between algal grown device and filter, on second pipeline Equipped with an algae return valve, the MBBR reactor is without aeration, only by the photosynthesis of algae in algal grown ditch Heavy-oxygen-enriched water is generated, then heavy-oxygen-enriched water is recycled in MBBR reactor, completion meets microbiological oxidation in MBBR reactor and dissolves Dissolved oxygen needed for property organic matter, greatly reduces the energy consumption of sewage treatment.

Further, another inlet pipeline is connected with by COD solenoid valve on the MBBR reactor water inlet, works as water inlet COD (i.e. COD) is smaller, and when without by UASB reactor, sewage directly passes through COD solenoid valve and enters MBBR Reactor further decreases sewage treatment energy consumption.

Further, suspension filler, unlike previous filler, floating stuffing are equipped in the MBBR reactor It can be easy to water free movement under gentle agitation with sewage frequent multiple-contact, it has effective ratio area big, is suitble to micro- life The characteristics of object Absorption Growth, strong applicability have a wide range of application, and can be not only used for organic matter removal, it can also be used to denitrogenation dephosphorizing.

Further, blender is removably connected in the algal grown device, blender promotes the algae of bottom toward table Layer movement, increases the photosynthesis of system, and system continuously generates heavy-oxygen-enriched water by photosynthesis, meanwhile, it consumes bacteriogenic Carbon dioxide, absorb processed water outlet in nutriment, by the second level of sewage treatment, tertiary treatment be fused into one it is low Energy consumption process.

Further, the blender includes shaft and the stirring rod that is movably arranged at below shaft, shaft and stirring rod It is threadedly coupled and locks direction with shaft rotation direction on the contrary, the mode that connect of stirring rod is flexible, it is convenient for disassembly and assembly, it is convenient for the later period clear Clean maintenance.

In conclusion the utility model has the advantage that firstly, without aeration, only by algae in algal grown device The photosynthesis of class generates heavy-oxygen-enriched water, is just able to satisfy dissolution needed for microbiological oxidation dissolved organic matter in MBBR reactor Oxygen greatly reduces the energy consumption of sewage treatment；Secondly, effluent characteristics are high, the nutrients such as nitrogen and phosphorus can be especially substantially reduced The content of matter；Finally, the excess sludge generated is few, and can produce valuable algae, algae solid is valuable product, It is used as the source material of natural fertilizers or biological plastics industry.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the detaching structure schematic diagram of the utility model blender.

Specific embodiment

In order to make those skilled in the art better understand the utility model, below in conjunction with the utility model reality The attached drawing in example is applied, the technical solutions in the embodiments of the present invention are clearly and completely described.

As shown in Figs. 1-2, a kind of low-energy-waste sewage treatment unit using algae photosynthesis, including UASB (Up-flow Anaerobic Sludge Bed) reactor 1, MBBR (Moving Bed Biofilm Reactor) reactor 2, algal grown Device 3 and filter 4, the UASB reactor 1 are connected with MBBR reactor, fill out in MBBR reactor equipped with suspension Material, first sewage enter UASB reactor 1 and carry out anaerobic reaction, and residence time 6-8h, then flows into UASB reactor 1 Aerobic reaction occurs for MBBR reactor 2, and suspension filler 8 is arranged inside MBBR reactor 2, and fixed its of microorganism is grown, 2 residence time of MBBR reactor 1-2h；On the other hand, MBBR reactor 2 is also connected with another inlet pipeline, is arranged on the pipeline Have a COD solenoid valve, when influent COD it is smaller without by UASB reactor when, sewage directly pass through COD solenoid valve into Enter MBBR reactor, further decreases sewage treatment energy consumption；Between MBBR reactor 2 and algal grown device 3 be equipped with first pipe, Second pipe, the second pipe are equipped with an oxygen-enriched water valve 5, and the anoxic water after handling through MBBR reactor 2 passes through first Pipeline enters algal grown device 5.

As shown in Fig. 2, arranging blender 9 inside algal grown device 5, the blender 9 is detachable, is specially stirred Device 9 includes shaft 91 and the stirring rod 92 for being movably arranged at 91 lower section of shaft, and shaft 31 is threadedly coupled with blender and locks direction It is opposite with shaft rotation direction.The algae for promoting bottom moves toward surface layer, promotes the mixing of algae and sewage, increases system Photosynthesis, the MBBR reactor in the device is without aeration, because the photosynthesis by algae in algal grown device produces Heavy-oxygen-enriched water, is then recycled in MBBR reactor by raw heavy-oxygen-enriched water by oxygen-enriched water valve, and completion meets micro- life in MBBR reactor Dissolved oxygen needed for object oxidation dissolution organic matter, the time that sewage is handled in algal grown device 5 are about 22h, wherein " rich For oxygen water valve " using the water valve that can directly buy on the market, " algal grown device " is one in the rectangular tank of trench It is contained with algae；The first pipeline and the second pipeline are equipped between algal grown device 3 and filter 4, on second pipeline Equipped with an algae return valve 6, the sewage of the mixing algae and bacterium flowed out from algal grown device 3 flows into filtering by the first pipeline It being separated by solid-liquid separation in machine 4, algae and bacterial mixture a part are discharged or are further processed and become available material, A part is back to algal grown device 3 by algae return valve 6, wherein " algae return valve " uses can directly buy on the market Return valve.

Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments. Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts The range of the utility model protection all should belong in every other embodiment.

Claims

1. a kind of low-energy-waste sewage treatment unit using algae photosynthesis, it is characterised in that: including UASB reactor (1), MBBR reactor (2), algal grown device (3) and filter (4), the UASB reactor (1) and MBBR reactor (2) phase Even, first pipe, second pipe are equipped between MBBR reactor (2) and algal grown device (3), the second pipe is equipped with one Oxygen-enriched water valve (5) is equipped with the first pipeline and the second pipeline, on second pipeline between algal grown device (3) and filter (4) Equipped with an algae return valve (6).

2. a kind of low-energy-waste sewage treatment unit using algae photosynthesis according to claim 1, it is characterised in that: Inlet pipeline is connected on the MBBR reactor (2), the inlet pipeline is equipped with a COD solenoid valve (7).

3. a kind of low-energy-waste sewage treatment unit using algae photosynthesis according to claim 1, it is characterised in that: Suspension filler (8) are equipped in the MBBR reactor (2).

4. a kind of low-energy-waste sewage treatment unit using algae photosynthesis according to claim 1, it is characterised in that: Blender (9) are removably connected in the algal grown device (3).

5. a kind of low-energy-waste sewage treatment unit using algae photosynthesis according to claim 4, it is characterised in that: The blender (9) includes shaft (91) and the stirring rod (92) being movably arranged at below shaft (91), shaft (91) and stirring rod (92) it is threadedly coupled and locking direction is opposite with shaft rotation direction.