CN219156727U

CN219156727U - Kelp processing high salt effluent treatment plant

Info

Publication number: CN219156727U
Application number: CN202320257159.6U
Authority: CN
Inventors: 张敬; 高珊
Original assignee: Dalian Shidate Environmental Science And Technology Co ltd
Current assignee: Dalian Shidate Environmental Science And Technology Co ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-06-09
Anticipated expiration: 2033-02-20

Abstract

The utility model relates to kelp processing high-salt wastewater treatment equipment, which comprises a boiling vegetable production wastewater treatment device and a cooling wastewater treatment device, wherein the cooling wastewater treatment device comprises a first grid tank and a filter screen, the boiling vegetable production wastewater treatment device comprises a suspended matter filter tank, a water quality adjusting tank, a reaction tank, a coagulation tank, an air flotation tank, a UASB tank, a contact oxidation tank and an MRB tank which are sequentially arranged, and the MRB tank is externally connected with a flowing tank. The utility model separates the boiled hot water and the cooling water in the kelp processing high-salt wastewater, which can effectively reduce the construction cost of subsequent treatment equipment and save the investment; meanwhile, the UASB pool, the contact oxidation pool and the MRB pool are adopted to carry out biochemical treatment on sewage, so that the low cost and high stability required by industrial production are realized; besides, the releasing pool has the function of disinfection, saves the occupied area, uses 11 percent of NaClO for disinfection, does not generate toxic and harmful byproducts, and has little harm to the environment.

Description

Kelp processing high salt effluent treatment plant

Technical Field

The utility model relates to the technical field of high-salt wastewater treatment in kelp processing, in particular to high-salt wastewater treatment equipment for kelp processing.

Background

The kelp processing production wastewater is obtained from seawater, and the production wastewater consists of boiled hot water and cooling water, and has two obvious characteristics of high pollutant content, high salt content, poor biodegradability, large cooling water yield, basically the same quality as seawater, and can be simply treated and then discharged.

The utility model patent with application number 201620978344.4 discloses a marine product processing wastewater treatment system, which comprises an air floatation tank, sand filtration equipment, carbon filtration equipment, an electrodialysis system, an anaerobic tank, an aerobic tank and a discharge tank, wherein the technology adopts electrodialysis technology to remove salt, no chemical agent is needed, the equipment and the assembly technology are simple, but the pretreatment requirement of electrodialysis on raw water is high, the air floatation filtration equipment is only added before electrodialysis, high-concentration organic compounds in water cannot be effectively removed, and after polar organic matters in water are adsorbed by a film, the polarity of the film can be changed, the selective permeability of the film is reduced, the film resistance is increased, and the salt removal effect is affected. Moreover, the system does not treat the production process wastewater separately, which is liable to cause the problems of high capital cost and excessive investment in the process of the treatment system.

In addition, the multi-effect evaporation desalting process is also adopted for kelp processing high-salt sewage, but the kelp processing production period is short, the kelp processing production period generally only runs for 7-9 months in summer, the system automation degree is low, the starting difficulty is high, and the one-time investment is high. Therefore, there is a need to develop a sewage treatment device which is efficient, energy-saving, quick in starting biochemical process, simple and convenient to operate and low in investment.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects in the prior art and providing high-salt wastewater treatment equipment for kelp processing.

The utility model is realized by the following technical scheme:

the utility model provides a kelp processing high salt effluent treatment plant, includes scalds dish waste water treatment plant and cooling waste water treatment plant, scalding dish waste water treatment plant includes suspended solid filtering ponds, quality of water equalizing basin, reaction tank, coagulation tank, air supporting groove, UASB pond, contact oxidation pond and the MRB pond that set gradually.

According to the above technical scheme, preferably, the cooling wastewater treatment device comprises a first grid pond and a filter screen.

According to the technical scheme, preferably, a water inflow flow regulating tank is arranged between the suspended matter filtering tank and the water quality regulating tank.

According to the technical scheme, preferably, the air floatation tank is communicated with the sludge storage tank and the sludge filter press outwards.

According to the above technical scheme, preferably, an intermediate water tank is arranged between the air floatation tank and the UASB tank.

According to the above technical scheme, preferably, the MRB tank is connected with a discharging tank.

According to the above technical scheme, preferably, naOH solution is added in the water quality regulating tank.

The beneficial effects of the utility model are as follows:

the utility model separates the boiled hot water and the cooling water in the kelp processing high-salt wastewater, which can effectively reduce the construction cost of subsequent treatment equipment and save the investment; meanwhile, the UASB pool, the contact oxidation pool and the MRB pool are adopted to carry out biochemical treatment on sewage, so that the low cost and high stability required by industrial production are realized; besides, the releasing pool has the function of disinfection, saves the occupied area, uses 11 percent of NaClO for disinfection, does not generate toxic and harmful byproducts, and has little harm to the environment.

Drawings

Fig. 1 is a schematic diagram of the structural connection of the present utility model.

Detailed Description

The present utility model will be described in further detail below with reference to the drawings and preferred embodiments, so that those skilled in the art can better understand the technical solutions of the present utility model. All other embodiments, based on the embodiments of the utility model, which would be apparent to one of ordinary skill in the art without making any inventive effort are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Example 1 As shown in the figure, the utility model comprises a scalding production wastewater treatment device and a cooling wastewater treatment device, wherein the cooling wastewater treatment device comprises a first grid tank and a filter screen, the scalding production wastewater treatment device comprises a suspended matter filter tank, a water quality adjusting tank, a reaction tank, a coagulation tank, an air floatation tank, a UASB tank, a contact oxidation tank and an MRB tank which are sequentially arranged, and the MRB tank is externally connected with a flowing tank. In the process sections of the UASB pool, the contact oxidation pool and the MRB pool, when treating high-medium concentration wastewater, an anaerobic-aerobic series process is adopted, and the technical principle and the route are disclosed in patent CN206720997U, so that the anaerobic bacteria and the aerobic bacteria added in the UASB pool and the MRB pool are salt tolerant bacteria, and the strain has high activity in a high-salt environment, can effectively reduce carbon and denitrify, is efficient and energy-saving, and is simple and convenient to operate.

The embodiment 2 is shown in the figure, the device comprises a scalding production wastewater treatment device and a cooling wastewater treatment device, wherein the cooling wastewater treatment device comprises a first grid tank and a filter screen, the scalding production wastewater treatment device comprises a suspended matter filter tank, a water quality adjusting tank (an adjusting tank 2), a reaction tank, a coagulation tank, an air flotation tank, a UASB tank, a contact oxidation tank and an MRB tank which are sequentially arranged, an intermediate tank is arranged between the air flotation tank and the UASB tank, the MRB tank is externally connected with a flowing tank, 11% NaClO solution is added into the flowing tank for disinfection treatment, and effluent is discharged up to the standard. NaOH solution is added into the water quality regulating tank, and NaOH is added into the water quality regulating tank to regulate the water quality to be neutral. In the embodiment, the suspended matter filtering tank is preferably a second grid tank, a water inflow flow regulating tank (regulating tank 1) is arranged between the suspended matter filtering tank (second grid tank) and the water quality regulating tank, the scalding production wastewater is in a suspended or floating state by blocking kelp in sewage through the grids, a water pump and a pipeline are prevented from being blocked, grid effluent automatically flows into the water inflow flow regulating tank, and the water inflow is regulated to be uniform. The air floatation tank is externally communicated with a sludge storage tank and a sludge filter press, the sludge cake is transported outwards, and the filtrate flows back to the water inflow flow regulating tank.

The reaction tank, the coagulation tank and the air floatation tank can be arranged as integrated equipment, and the working principle of the integrated equipment is disclosed in the prior patent CN111434625A, CN2194357, so that the integrated design mode is not repeated in the technical scheme, wherein the coagulant added in the reaction tank for coagulation reaction is PAC, the flocculant added in the coagulation tank for flocculation reaction is PAM, and mud-water separation is completed in the air floatation tank. Furthermore, the high-salt wastewater treatment apparatus disclosed in the present technical scheme is preferably but not limited to: the sewage pipeline adopts the PVC pipe, and the aeration pipeline adopts the SGP pipe, and the mud pipeline adopts the PPR pipe, and pipeline conveying sewage, air and mud of application different materials guarantees construction quality, avoids the environmental pollution problem that the pipeline seepage flow problem leads to. In addition, an electromagnetic flowmeter and a pH control system are arranged on a water inlet pipeline connected with a water inlet flow regulating tank, an ABS stirring air pipe is arranged in a water quality regulating tank and an intermediate water tank, an EPDM aerator is arranged in a contact oxidation tank, and a PP-PVDF tubular aerator is arranged in an MBR tank.

The working process of this patent is preferably: the kelp processing high-salt wastewater treatment integrated equipment added with the salt-tolerant bacteria is divided into 2 sets of devices, and comprises a scalding production wastewater treatment device and a cooling wastewater treatment device. Because the quality of the cooling water is similar to that of the seawater, the wastewater is directly discharged to the sea after only the large-volume suspended matters are intercepted by the grid filter screen. The device for treating the scalding production wastewater is divided into physical and chemical treatment, biochemical treatment and disinfection treatment, wherein the wastewater is intercepted by a grille to form kelp in a suspension or floating state, a water pump and a pipeline are prevented and treated, grille effluent flows into a water inflow flow regulating tank from a self-flowing mode, the water inflow is regulated to be uniform, naOH is added into a water quality regulating tank to regulate the water quality to be neutral, the wastewater is pumped into integrated equipment by a pump, a coagulant PAC is added into a reaction tank, a flocculating agent PAM is added into a condensing tank, mud-water separation is completed in an air floatation tank, the wastewater flows into a UASB tank, a contact oxidation tank and an MRB tank by a pump through an intermediate tank for biochemical treatment, sludge in the MBR tank flows back to the UASB tank, denitrification is carried out, the sewage is pumped into a membrane tank for removing most of organic matters and suspended matters, the effluent flows into a discharge tank, and 11% NaClO solution is added into the tank for disinfection treatment, and the effluent is discharged up to standard.

The utility model solves the problem of difficult treatment of the kelp processing high-salt wastewater, reduces the desalting cost, has high automation degree, separates the boiled hot water and the cooling water in the kelp processing high-salt wastewater for treatment, has small investment occupation area and good removal effect, clarifies the effluent, and effectively solves the problem of damage of water quality malodor pollution in the local kelp processing industry to the local sea area environment.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. The kelp processing high-salt wastewater treatment equipment is characterized by comprising a scalding production wastewater treatment device and a cooling wastewater treatment device, wherein the scalding production wastewater treatment device comprises a suspended matter filtering tank, a water quality adjusting tank, a reaction tank, a coagulation tank, an air floatation tank, a UASB tank, a contact oxidation tank and an MRB tank which are sequentially arranged.

2. The kelp processing high salt wastewater treatment apparatus of claim 1 wherein said cooling wastewater treatment means comprises a first grating pond and a filter screen.

3. The kelp processing high-salt wastewater treatment equipment according to claim 1, wherein a water inflow flow regulating tank is arranged between the suspended matter filtering tank and the water quality regulating tank.

4. A kelp processing high salt wastewater treatment apparatus according to any one of claims 1 to 3, wherein said air floatation tank is in communication with a sludge storage tank and a sludge press filter.

5. The kelp processing high-salt wastewater treatment device according to claim 1, wherein an intermediate water tank is arranged between the air floatation tank and the UASB tank.

6. The kelp processing high-salt wastewater treatment equipment according to any one of claims 1 to 3 and 5, wherein a flowing tank is connected to the MRB tank.

7. A kelp processing high-salt wastewater treatment device according to claim 1 or 3, wherein NaOH solution is added in the water quality adjusting tank.