CN101254995A - Integrated domestic sewage treatment ecological box - Google Patents

Abstract

The invention relates to an integrated domestic sewage treatment ecological box, which comprises five parts including a sewage collection pool, an anaerobic adjustment pool, an aerobic reaction pool, a water reuse pool and an artificial wetland. The sewage flows through the sewage collection tank, anaerobic adjustment tank, and aerobic reaction tank into the artificial wetland in sequence, realizing the combination of sewage collection, anaerobic and aerobic degradation and ecological engineering technology, and achieving the purpose of sewage purification and reuse in ecological landscape. The ecological box is divided into upper and lower layers. The lower layer is divided into sewage collection pool, anaerobic adjustment pool, and aerobic reaction pool to realize the functions of sludge collection, odor removal and sewage purification; the upper layer facilities are constructed wetland pool and water reuse pool. Realize the function of sewage reuse in ecological landscape.

Description

Integrated domestic sewage treatment ecological box

Technical field

The invention relates to an integrated sewage treatment device, which is an ecological box that fully utilizes ecological engineering technology to combine and integrate sewage collection, storage, treatment and reuse.

Background technique

The usual domestic sewage treatment technologies are physical and chemical methods and biofilm methods, which require the construction of a large-scale and industrialized treatment system, which not only covers a large area, requires a large investment, and consumes a lot of energy, but also requires a dedicated recycling system for its reuse. Distance from water delivery and installation of dedicated reclaimed water reuse facilities. In daily life and production, people often need small sewage treatment facilities with small consumption, simple facilities, and convenience, so that sewage can be effectively used and reduced, and the concept of energy saving and circular economy can be realized.

Contents of the invention

In order to overcome the shortcomings of large scale and high energy consumption of existing sewage treatment facilities, the present invention provides an integrated domestic sewage treatment ecological box, which not only occupies a small area and requires less investment, but also collects, stores, treats and Combined with organic use, the use of ecological engineering technology ensures the purpose of being close to nature and creating a beautiful landscape.

The technical solution adopted by the present invention to solve its technical problems is: the integrated domestic sewage treatment ecological box includes upper and lower layers, the lower layer is a sewage collection and storage adjustment pool, and the upper layer is a sewage ecological treatment and reuse pool constructed by ecological engineering body. The lower pool is divided into three parts: the collection pool for collecting sewage, the closed anaerobic adjustment pool, and the closed aerobic reaction pool; the upper pool is the wetland pool and the landscape water body pool. When the sewage enters the sump, it undergoes simple physical precipitation for solid-liquid separation; then enters the anaerobic regulating tank, where anaerobic decomposition occurs to enhance the biochemical capacity of the sewage; then enters the closed aerobic reaction tank for pre-aeration, improving The microorganisms in the sewage are active, and can effectively remove some pollutants; after the pre-treatment of the lower layer, the sewage is pumped to the upper pool body, and the upper pool body is built into an artificial wetland and other landscape pools. Through these ecological engineering constructions, it can be further improved Water pollutants are degraded and removed, and its aesthetic landscape design makes sewage reuse simple, easy and natural.

The beneficial effect of the present invention is that various stages of sewage treatment can be integrated into an integrated device, which is convenient for installation and practicality, and can be combined with related water utilization projects on the ground (greening, water features, car washing, fish farming, greenhouse planting), To realize the effective utilization of sewage.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments. The accompanying drawings are only for the purpose of illustrating preferred embodiments, and are not intended to limit the present invention.

Fig. 1 is a process flow chart of the integrated domestic sewage treatment ecological box according to the utility model.

Fig. 2 is a longitudinal sectional structure diagram of the integrated domestic sewage treatment ecological box according to the utility model.

Fig. 3 is the I--I sectional view of Fig. 2.

Fig. 4 is a sectional view taken along line II--II of Fig. 3 .

Detailed ways

As shown in Figure 1 and Figure 2, the integrated domestic sewage treatment ecological box is an integrated sewage treatment device, which is divided into two layers: underground and ground. The underground part is a lower buried facility (9), including a water collection tank (1), an anaerobic adjustment tank (2), and an aerobic reaction tank (3). The aboveground part is an ecological landscape facility (8), including an artificial wetland pool (4) and a reuse pool (5). The buried facilities in the underground part constitute the sewage biofilm treatment process, which can effectively remove pollutants in sewage and purify water quality through anaerobic and aerobic sequential biological reactions.

As shown in Figure 2, the integrated domestic sewage treatment ecological tank is an overall square shape, made of A3 steel, lined with glass fiber reinforced plastic for anti-corrosion, and divided into upper and lower layers; the lower layer is divided into 3 square pools, of which the anaerobic adjustment pool (2) Folded plate diversion is used inside to control the direction of water flow, suspended packing is placed to promote bio-film formation (12), the aerobic reaction tank (3) uses suspended packing (16) and air oxygenation (18), and activated carbon is used as the carrier design to eliminate Odor layer (15); the upper layer is an artificial wetland pond (4), which uses gravel and quartz sand as fillers to plant cattails and rushes, and the reuse pond (5) is designed for landscape fish farming, cultivating catfish, crucian carp and koi.

Fig. 3 is the I--I sectional view of Fig. 2, and domestic sewage enters sump tank (1) successively through pipeline collection, anaerobic adjustment tank (2), aerobic reaction tank (3), constructed wetland pool (4), finally enters The reuse pool (5) is rationally utilized. The microorganisms in the anaerobic regulating tank (2) perform anaerobic acidification reaction, decompose the refractory substances in the sewage and select the microbial strains to improve the viability of the sewage, and at the same time select the appropriate strains to enter the aerobic reaction with the water flow pool (3); the air blower (7) in the aerobic reaction pool (3) provides sufficient dissolved oxygen for aeration, and aerobic microorganisms multiply rapidly on the filler (16), thereby digesting and degrading the pollutants of the sewage, wherein The nitration reaction of the ammonia nitrogen substances into nitric acid substances is a difficult point in the domestic sewage treatment of the odor produced in this reaction stage. This process adopts deodorizing biological filler (15) and cultivates and strengthens deodorizing bacteria, which can effectively remove the odor.

In Fig. 3, (10) is the sump grid, (11) is the H-shaped weir, (12) is the biofouling filler in the anaerobic adjustment tank, (13) is the inspection port, and (14) is the anaerobic adjustment tank Packing support, (15) is the airtight aerobic reaction tank deodorization biological filler support, (16) is the biological filler of the aerobic reaction tank, (17) is the water weir mouth, (18) is the aeration pipeline of the aerobic reaction tank, ( 19) is to lift the water pump unit, and (20) is an air vent.

Fig. 4 is a sectional view taken along line II--II of Fig. 3 .

There are many pipe networks in the underground part, including the aeration pipe (18), which mainly injects air into the aerobic reaction tank (3) to provide sufficient dissolved oxygen; The remaining sludge is collected and discharged regularly; the exhaust gas treatment pipe network (15) and (20) collects the generated odor for centralized treatment and discharge, so as to avoid affecting the living environment.

Among Fig. 4, (21) is the sludge discharge pipe, (22) is the sludge collection tank, (23) is the sludge return pipe of the aerobic reaction tank and the anaerobic adjustment tank.

Device requirements: After the equipment is manufactured, carry out 48 small test water tests;

Production process: After the water test is completed, the inside and outside must be derusted and punctured, the inner wall is lined with glass fiber reinforced plastics, the outer wall is painted with 2 coats of anti-virus and anti-corrosion paint, and 1 coat of color paint.

The working principle is as follows, the present invention mainly utilizes microbial growth to degrade pollutants. Therefore, its removal of pollutants conforms to the monod equation, and its overall reaction conforms to the first-order kinetic equation.

$\frac{{\mathrm{<span\; class="notranslate">\; C</span>}}_{\mathrm{<span\; class="notranslate">\; e</span>}}}{{\mathrm{<span\; class="notranslate">\; C</span>}}_{\mathrm{<span\; class="notranslate">\; o</span>}}}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; e</span>}}^{{<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; K</span>}}_{\mathrm{<span\; class="notranslate">\; T</span>}}\mathrm{<span\; class="notranslate">\; t</span>}}$

In the formula: C _e ——the effluent concentration of a certain index, mg/L;

C _o ——influent concentration of a certain index, mg/L;

K _T — first-order reaction rate constant, d ^-1 ;

t——Hydraulic retention time of the system, d.

The hydraulic retention time of each part is shown in Table 1 below.

Table 1 The value and description of the hydraulic retention time of each component

reaction stage Hydraulic retention time (h) Remark Sump 1-3   The peak value of water intake, the volume is minus the volume of the sludge tank Anaerobic adjustment pool 8-12 Correct the volume according to the selected packing Aerobic reaction pool 3-5 Correct the volume according to the selected packing Artificial wetland 10-12 The porosity is generally 0.6 for gravel and 0.4 for sand reuse pool - According to the use of their own choice

The invention has been described in terms of preferred embodiments. Obviously, various modifications and substitutions will occur to others upon reading and understanding the above detailed specification. It is intended that this application be constructed to include all such modifications and substitutions as come within the scope of the appended claims or their equivalents.

Claims (4)

1. An integrated domestic sewage treatment ecological box, the sewage flows through the sump, the anaerobic pool, and the aerobic pool into the artificial wetland in sequence, and its characteristics are: the combination of sewage collection, anaerobic and aerobic degradation and ecological engineering technology, ecological The tank is divided into upper and lower layers. The lower layer is divided into sewage collection pool, anaerobic adjustment pool, and aerobic reaction pool. At the same time, it realizes the functions of sludge collection, odor removal and sewage purification. The upper layer facilities are constructed wetland pool and water reuse pool. Realize the function of sewage reuse in ecological landscape. 2. The integrated domestic sewage treatment ecological box according to claim 1, characterized in that: the ecological box is an overall square shape, made of A3 steel, lined with glass fiber reinforced plastic for anticorrosion, and divided into upper and lower layers; the lower layer is divided into three squares In the pool, the anaerobic regulating pool adopts folded plate diversion to control the direction of water flow, and places suspended fillers to promote biological film formation. The aerobic pool uses suspended fillers and air oxygenation, and uses activated carbon as a carrier to design a deodorizing layer; the upper layer is a constructed wetland , using gravel and quartz sand as fillers, planting cattails and rushes, and the reuse pond is designed for landscape fish farming, where catfish, crucian carp and koi are raised. 3. According to the integrated domestic sewage treatment ecological tank described in claims 1 and 2, the sewage flow is to enter the artificial wetland through the sump, the anaerobic pool, and the aerobic pool in order to achieve the purpose of purifying sewage. 4. The integrated domestic sewage treatment ecological box according to claims 1 and 2, which is characterized in that it is divided into upper and lower layers, the upper layer is the water reuse landscape layer, and the lower layer is the sewage treatment facility layer.

Images