CN206266394U - Integrated scattered domestic sewage treatment device - Google Patents

Abstract

The utility model discloses a kind of integrated scattered domestic sewage treatment device, including grid, regulating reservoir, MBBR anoxic ponds, MBR Aerobic Ponds and the disinfection pool being sequentially connected, it is provided with reflux line between the MBR Aerobic Ponds and MBBR anoxic ponds.Sterilization pool is provided with apparatus for ultraviolet disinfection.Also include Chemical cleaning unit.Treatment effect is stable, with low cost, easy to operate, be easily managed, by being used in combination for MBR and MBBR, using the film crown_interception of nitric efficiency MBR high, impact resistance and MBR techniques, improve treatment effeciency, reduce occupation of land, automatization level is improve, rural area use environment is more suitable for.

Description

Integrated scattered domestic sewage treatment device

Technical field

The utility model is related to a kind of sewage-treatment plant, more particularly to a kind of integrated dispersant type domestic wastewater treatment dress Put.

Background technology

Water resources in china lacks the healthy and sustainable development that China's macroeconomy is seriously govern with water pollution, infrastructure Delayed and managerial skills lowly inhibit improving for rural area quality of residents'life, and country goes into overdrive to help New rural village water changes project, and the water environment treatment of rural area should turn into the important component of China's comprehensive environmental improvement.

Country sewage is disperseed due to area, and the size of population is larger, is collected the reasons such as difficulty and is caused country sewage as water pollution Main compositing factor, also having in country sewage substantial amounts of organic matter and has the inorganic salts such as nitrogen, phosphorus.

According to the characteristics of country sewage, main methods have following several：High-Rate Algae Pond technology, biofilter skill Art, Artificial Wetland Techniques, filler flowing bed technique, membrane Bio-reactor Technology anaerobism purification techniques etc..This integration life is dirty Water treatment facilities is on the basis of the advantage and disadvantage for combining existing sewage disposal technology, by technology of biological membrane (MBBR) and membrane bioreaction Device technology (MBR) is answered organically to combine, by the novel efficient sewage treatment device that a large amount of engineering practices and improvement are formed.

It is analyzed by the sanitary sewage water quality produced to new rural planning, using sewage disposal integration facility opposite Sewage living is processed, and effluent quality reaches after treatment《Urban sewage reutilization urban reclaimed water water standard》 Relevant criterion requirement in (GBT18920-2002), water outlet can substantially realize zero release of pollutant as greening water, meet New environmental law requirement；The recycling rate of waterused of water resource is not only improved, alleviated the contradiction of supply and demand for the water resource, realized Integrated Energy profit With, can also improve workers and peasants' living environment, " 12 " planning of country has been responded, in saving water resource, protection water environment, promote The harmonious development aspect of society, the healthy and sustainable development to Chinese society economy plays the effect actively promoted.

In the prior art, as shown in figure 1, conventional activated sludge process is at current most widely used city domestic sewage Science and engineering skill, first sanitary sewage are collected grid and remove big suspension, floating object, fibrous matter and solid particulate matter through pipe network Matter, subsequently into anoxic pond, carries out denitrification denitrogenation biochemical reaction, while some organic pollutants of degrading, anoxic pond water outlet enters Enter it is aerobic eat pond, carry out aerobic decarburization and nitration reaction, to remove ammonia nitrogen and organic pollution, Aerobic Pond water outlet enters sedimentation basin Mud-water separation is carried out, supernatant flows automatically to disinfection pool, carried out disinfection treatment, Ran Houda by adding the disinfectants such as sodium hypochlorite The outer row of mark.

The technique mostly using the gravity type sedimentation basin of formula point is built as the means of active sludge intermixture separation of solid and liquid, no Only floor space is big, and also creates many other problems:1. it is inefficient due to sedimentation basin separation of solid and liquid, in aeration tank Sludge concentration be difficult to maintain higher level, cause that the volumetric loading of processing unit is low, oxygen transfer efficiency is low, high energy consumption；2. process Effluent quality is not ideal enough and is not sufficiently stable, it is difficult to meet the requirement of the discharge standard for improving constantly；3. excess sludge production is big, Treatment of Sludge high cost；4. complex operation is managed, maintenance cost is high.

Suspension biochemical sludge in due to relying primarily on mixed liquor in anoxic pond and Aerobic Pond is processed, when water water When the fluctuation of matter water is larger, suspended active sludge is easily subject to load impact so that sludge activity reduction, settleability is deteriorated, Precipitation can not very well carry out mud-water separation, cause sludge to outflow, and effluent quality is substantially deteriorated；Additionally needing the long period could be extensive Original treatment level is arrived again；With the raising of country and local sewage drainage standard, the technique is difficult to meet the outer row of newest country The requirement of water COD, ammonia nitrogen, total nitrogen and total phosphorus；Because the system automation degree is relatively low, it is necessary to staff on duty；Due to the system Treatment load is relatively low, so often floor space is larger.

Utility model content

The purpose of this utility model be to provide a kind for the treatment of effeciency it is high, take up an area less, high degree of automation integration dispersion Formula sewage treatment unit.

The purpose of this utility model is achieved through the following technical solutions：

Integrated scattered domestic sewage treatment device of the present utility model, including be sequentially connected grid, regulating reservoir, MBBR anoxic ponds, MBR Aerobic Ponds and disinfection pool, reflux line is provided between the MBR Aerobic Ponds and MBBR anoxic ponds.

The technical scheme provided by above-mentioned the utility model is as can be seen that the integration that the utility model embodiment is provided divides Dissipate formula sewage treatment unit, by being used in combination for MBR and MBBR, using nitric efficiency MBR high, impact resistance and The film crown_interception of MBR techniques, improves treatment effeciency, meets newest discharging standards requirement, while can also meet reclaimed water returning With index request, as roadside greening, flush the toilet and irrigation water；Reduce and take up an area；Automatization level is improved, is accomplished without special messenger's value Keep, be more suitable for rural area use environment.

Brief description of the drawings

Fig. 1 is the structural representation of conventional activated sludge process in the prior art.

The technological process of the integrated scattered domestic sewage treatment device that Fig. 2 is provided for the utility model embodiment is illustrated Figure.

The structural representation of the integrated scattered domestic sewage treatment device that Fig. 3 is provided for the utility model embodiment.

Specific embodiment

The utility model embodiment will be described in further detail below.

Integrated scattered domestic sewage treatment device of the present utility model, its preferably specific embodiment is：

Including the grid, regulating reservoir, MBBR anoxic ponds, MBR Aerobic Ponds and the disinfection pool that are sequentially connected, the MBR is aerobic Reflux line is provided between pond and MBBR anoxic ponds.

The sterilization pool is provided with apparatus for ultraviolet disinfection.

Also include Chemical cleaning unit.

MBBR technologies have drawn two kinds of advantages of processing method of traditional activated sludge process and bio-contact oxidation and have turned into one Plant new, efficient combination process processing method.Its core is directly to be added to life close to the floating stuffing of water with proportion Change the active carrier as microorganism in pond, by the aeration (aerobic MBBR) or stirring (anoxic MBBR) and current of biochemistry pool Comprehensive function and be in fluidized state, most microorganisms are attached on carrier, with mixed liquor convolution upset and move freely, To remove the pollutant in sewage, the purpose of sewage disposal is reached.

The advantage of MBBR technologies：Take up an area less, common oxidation pond 1/4~1/2 is only needed under the conditions of identical influent load Volume；Microorganism is attached on carrier and is backwashed without circulation with current flowing；Organic loading is high, impact resistance ability strong, goes out Water quality stabilizing；The loss of flood peak is small, power consumption is low, and operation is simple, convenient operation and management.

MBBR technologies are put into practice by many project, technical maturity, are widely used for trade effluent, municipal sanitary sewage Treatment, treatment effect is good.

MBR technology is the new Waste Water Treatment that membrane separation technique is organically combined with biologic treating technique.With membrane module Substitution traditional biological treatment technology end second pond, using the work in the membrane separation plant entrapping tank being immersed in aerobe pond Property sludge and larger molecular organicses.

Its process characteristic is as follows：

(1) high efficient solid and liquid separation, effluent quality is good, goes out aqueous suspension and turbidity close to zero, can direct reuse.

(2) UF membrane effect makes microorganism be completely trapped in bioreactor, realizes reactor hydraulic detention time (HRT) it is kept completely separate with sludge age (SRT), the flexible stabilization of operation control.

(3) MBR unites two into one traditional aeration tank and second pond, and replaces the process facility of tertiary treatment, therefore can be big Width reduces floor space, saves construction investment.

(4) beneficial to the retention and breeding of nitrobacteria, system nitrification efficiency is high.Can also have de- by the change of the method for operation Ammonia and phosphorus removal functional.

(5) because sludge age can be very long, so as to greatly improve the degradation efficiency of hardly degraded organic substance.

(6) reactor runs under volumetric loading high, low sludge loading, sludge age long, and excess sludge production is extremely low, due to mud Age can endless, zero sludge discharge can be realized in theory.

(7) system realizes PLC controls, convenient operation and management.

Integrated scattered domestic sewage treatment device of the present utility model, for wanting for dispersant type domestic wastewater treatment Ask, there is provided a kind for the treatment of effect is stable, with low cost, the technology being easily managed easy to operate.By the connection of MBR and MBBR Conjunction is used, and using the film crown_interception of nitric efficiency MBR high, impact resistance and MBR techniques, improves treatment effeciency, is met The requirement of newest discharging standards, while can also meet Treated sewage reusing index request, as roadside greening, flushes the toilet and irrigates use Water；Reduce and take up an area；Automatization level is improved, is accomplished without staff on duty, be more suitable for rural area use environment.

Specific embodiment：

As shown in Figure 2 and Figure 3, including grid, regulating reservoir, anoxic pond (MBBR), Aerobic Pond (MBR), disinfection pool and chemistry Cleaning unit.

Sanitary sewage enters regulating reservoir after removing larger suspension through grid first, and water quality and quantity tune is carried out in regulating reservoir Section；Being promoted to anoxic pond through sewage pump carries out denitrification denitrogenation while being degraded to partial organic substances, while using scarce The denitrification denitrogenation of biochemical film generation and hydrolysis acidification effect and Aerobic Pond are produced on the fluidized packing material that oxygen pond inside is set Aerobic decarburization and nitrification, can effectively remove COD, ammonia nitrogen and total nitrogen；Aerobic Pond water outlet is after film (MBR) is retained by pumping To sterilization pool, sewage can be used as greening water or standard discharge by water outlet after disinfection by ultraviolet light.

The device has the characteristics that：

1) equipment can be imbedded below earth's surface, and earth's surface can be used as greening or land for squares；

2) equipment does not take up an area surface area, without building a house, is not required to warm keeping, and the construction period is short；

3) supporting exploitation PLC control program, realizes fully automatic operation, and management is easy；

4) strong shock resistance, stable effluent quality；Treatment effeciency is high, can meet Treated sewage reusing index；

5) with high-efficient denitrification and dephosphorization ability, it is possible to by the construction of adjustment equipment, treatment industrial wastewater, life are reached The ability of sewage and combined sewage；

6) sludge quantity is few and is easily handled；

7) Ultraviolet Disinfection is used, floor space is small, operation maintenance is simple, expense is low；Its using effect by water temperature, Ph influences are small, and with germicidal efficiency higher, poisonous and harmful accessory substance do not produced, safe and reliable to operation.

8) main body uses GRP glass steel makings, and long service life can long-time steady operation.

9) can standardized designs, streamline batch production, reduction investment.

Embodiment treatment sewage is villages and small towns life water outlet.

Sanitary sewage is better than GB18918-2002 one-level A standards after treatment.

The utility model homogeneous, is measured by setting up regulating reservoir, realizes necessary water quality and quantity regulation, reduces water water The influence for bringing of matter water fluctuation；Using efficient MBR and MBBR GC-MSs, have complementary advantages, both make use of MBBR anti-impacts Hit ability strong, recovery time is fast after being impacted and efficient denitrification ability；The efficient crown_interceptions of MBR are make use of again, are improved Effluent quality, meets Treated sewage reusing water quality requirement comprehensively；Using Ultraviolet Disinfection, using safety, high degree of automation, make It is good with effect.System sludge concentration is improve, the concentration of obligate nitrification and denitrification bacterium is especially improve, system pair is improve The removal efficiency of ammonia nitrogen, total nitrogen, meets the requirement of newest discharge standard, not only reduces environmental pollution, and produce water can with reuse, Reduce water resource waste；MBR and MBBR high degree of automation, without staff on duty, being more suitable for the environment such as villages and small towns, scenic spot makes With.

The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed Change or replacement, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should It is defined by the protection domain of claims.

Claims (3)

1. a kind of integrated scattered domestic sewage treatment device, it is characterised in that including be sequentially connected grid, regulating reservoir, MBBR anoxic ponds, MBR Aerobic Ponds and disinfection pool, reflux line is provided between the MBR Aerobic Ponds and MBBR anoxic ponds.

2. integrated scattered domestic sewage treatment device according to claim 1, it is characterised in that the sterilization pool sets There is apparatus for ultraviolet disinfection.

3. integrated scattered domestic sewage treatment device according to claim 1 and 2, it is characterised in that also including changing Learn cleaning unit.