CN206033366U - A novel multi -functional oxidation pond for rural domestic sewage treatment - Google Patents

Abstract

The utility model discloses a novel multifunctional oxidation pool for rural domestic sewage treatment, which is provided with an oxidation pool body, a water inlet is arranged on the left side of the oxidation pool body, and an overflow port and a confluence groove are arranged on the right side of the oxidation pool body. The upper part of the oxidation tank body is provided with a medium device, the lower part of the medium device is provided with a floating ball layer, the lower part of the floating ball layer is provided with a water outlet, the water outlet is connected to the confluence tank, and the medium device is provided with a red brick layer, a medium layer, and a red brick layer. A stainless steel net is arranged between the layer and the medium layer, and a bamboo net is arranged between the medium layer and the floating ball layer, and the red brick layer is located on the upper part of the medium layer. The utility model solves the environmental pollution caused by domestic sewage in rural areas, solves potential safety hazards in rural water sources, alleviates the crisis of increasing shortage of fresh water resources, and thus ensures the environmental safety of rural social development.

Description

A New Multifunctional Oxidation Pool for Rural Domestic Sewage Treatment

technical field

The utility model belongs to the field of domestic sewage treatment, in particular to a novel multi-functional oxidation pool for rural domestic sewage treatment.

Background technique

Environmental pollution caused by domestic sewage in rural areas is not only a potential safety hazard in rural water sources, but also exacerbates the crisis of fresh water resources, thus endangering the sustainable development of rural society. Different from urban water use, rural water is generally used comprehensively by river water, well water and tap water, and generally the amount of domestic sewage in rural areas is relatively small, the sewage discharge is uneven, the water volume changes significantly, the instantaneous change is large, and the daily variation coefficient is small . The water quality of most rural domestic sewage is not much different, with good biochemical properties and a certain amount of nitrogen, phosphorus, and pathogenic bacteria. With the improvement of people's living standards, some domestic sewage may contain heavy metals and toxic and harmful substances, oil components have increased significantly, pollutant types have increased, and the contents of organic matter, nitrogen, and phosphorus have also increased.

At present, the domestic and foreign technologies for decentralized domestic sewage treatment in rural areas can generally be classified into two categories in terms of process principles: ecological treatment and microbial treatment systems. The ecological treatment system uses the principles of soil filtration, plant absorption and microbial decomposition, mainly including grass planting control, artificial wetland, media filtration system, natural pond ditch wetland, stable pond, etc. Microbial treatment system can be divided into aerobic biological treatment and anaerobic biological treatment biological treatment. Aerobic biological treatment is to oxygenate sewage by power, cultivate microbial strains, and use microbial strains to decompose, consume and absorb organic matter, nitrogen and phosphorus in sewage. Commonly used methods include activated sludge method, AO method, biological turntable and SBR method Wait.

These technologies have been widely used in domestic sewage treatment, but there are still some defects. First of all, the ecological treatment system generally occupies a large area, and the efficiency of nitrogen and phosphorus removal is not high. Due to the influence of rainfall and climatic conditions, the purification efficiency is unstable, and the purification capacity and service life are not clear, which may cause secondary pollution. Secondly, most microbial treatment systems have complicated process flow and unsatisfactory low-temperature pollution control effects, but the investment is high, the operation and management are cumbersome, professional and technical personnel are required to manage, and the service life is not long. It is especially worth pointing out that in the vast mountainous rural areas, some market towns even lack the necessary pre-treatment facilities for domestic sewage (such as septic tanks), and domestic wastewater mixed with human waste is directly discharged into the ditch. Ammonia and a lot of oil pollution. After the sewage containing high concentration of ammonia and oil enters the ecological wetland, it will make it difficult for the wetland plants to survive, which will lead to the failure of the ecological treatment system. Therefore, it is the key to the normal operation of the ecological treatment system to pre-treat this kind of sewage, reduce the ammonia concentration of the sewage entering the ecological wetland, and remove the oil in the sewage.

At present, the method of ecological treatment system to reduce the ammonia concentration in sewage generally adopts the contact oxidation method, but in practical application, there are some problems in the contact oxidation tank: (1) easy to block and difficult to clean; (2) easy to be washed away by floods; ( 3) Ammonia oxidation efficiency is low. Therefore, the development of ammonia treatment technology suitable for the ecological purification of domestic sewage in mountainous villages and towns is the key to the current ecological purification technology of domestic sewage in mountainous villages and towns.

Contents of the invention

The purpose of this utility model is to provide a new multi-functional oxidation pond for rural domestic sewage treatment, aiming to solve the problem of high ammonia concentration in the sewage entering the constructed wetland during the ecological treatment of rural domestic sewage, causing the plants in the constructed wetland to The problem of low survival rate.

The utility model is achieved like this,

A novel multifunctional oxidation pond for treating rural domestic sewage, the novel multifunctional oxidation pond for treating rural domestic sewage is provided with an oxidation pond body, a medium device, a floating ball layer and a confluence tank. A water inlet is provided on the left side of the oxidation tank body, and an overflow port is provided on the right side of the oxidation tank body, and the height of the overflow port is lower than the water inlet; a medium device is provided on the upper part of the oxidation tank body, and a floating ball layer is provided on the lower part of the medium device. The lower part of the floating ball layer is provided with a water outlet, and the water outlet is connected to the confluence tank; the medium device is provided with a red brick layer and a medium layer, a stainless steel mesh is set between the red brick layer and the medium layer, and a There is a bamboo net, the red brick layer is located on the upper part of the medium layer, the main function of the red brick layer is to keep sand, the main function of the medium layer is to use high adsorption medium to filter and absorb pollutants in the sewage, and the main function of the floating ball layer is to provide The place where microorganisms implant, forming a biological oxidation film. Both the medium device and the floating ball layer are used to filter the sewage to be purified. The confluence tank mainly uses the water pressure difference between the inlet and outlet water to work.

Further, the vertical height of the overflow port based on the bottom of the oxidation tank body is smaller than the vertical height of the water inlet.

Further, the buoyant layer is provided with a plurality of buoyant bodies.

The water outlet of the confluence tank is lower than the overflow port on the right side of the oxidation tank.

The utility model provides a new multifunctional oxidation pond for rural domestic sewage treatment. This kind of treatment is mainly used for pretreatment of domestic sewage treatment. Compared with other technologies, it has the following advantages:

(1) The treatment method is economical, efficient, and can be harmless, and the rural wastewater treated by this method can meet the water quality requirements of the constructed wetland influent in the "Technical Specifications for Constructed Wetland Sewage Treatment Engineering";

(2) While treating high-ammonia wastewater, it can remove the oil in the sewage, and also has a high purification efficiency for phosphorus in the sewage;

(3) The structure is simple, the construction cost is low, and the maintenance is convenient.

The utility model solves the problem that the ammonia concentration of rural domestic sewage is relatively high, and the traditional method cannot reduce the concentration of ammonium nitrogen in the sewage entering the artificial wetland, and cannot guarantee the survival rate of plants in the artificial wetland. At the same time, the device can also treat domestic sewage Phosphorus pollution problem and oil pollution problem.

Description of drawings

Fig. 1 is a schematic diagram of a new multi-functional oxidation pond for rural domestic sewage treatment provided by an embodiment of the utility model.

In the figure: 1. water inlet; 2. overflow port; 3. red brick layer; 4. stainless steel mesh; 5. confluence tank; floating ball layer; 6. water outlet; 7. floating ball layer; 8. medium layer; 9. Oxidation tank body; 10. Bamboo woven net.

detailed description

In order to make the purpose, technical solution and advantages of the present utility model clearer, the present invention will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Below in conjunction with accompanying drawing, the application principle of the present utility model is further described.

As shown in Figure 1:

A new type of multifunctional oxidation pond for rural domestic sewage treatment. The new multifunctional oxidation pond for rural domestic sewage treatment is provided with an oxidation pond body 9, with a water inlet 1 on the upper left side of the oxidation pond body, and an oxidation pond body on the upper right side. An overflow port 2 is provided on the side, a medium device is provided on the upper part of the oxidation tank body, a floating ball layer 7 is provided on the lower part of the medium device, a water outlet 6 is provided on the lower part of the floating ball layer, and a confluence tank 5 is provided on the lower right part of the water outlet. The medium device is provided with a red brick layer 3 and a medium layer 8, a stainless steel mesh 4 is arranged between the red brick layer and the medium layer, a bamboo net 10 is arranged between the medium layer and the floating ball layer, and the red brick layer is located in the medium On the upper part of the layer, both the medium device and the floating ball layer are used to filter the sewage to be purified.

The body of the oxidation tank is 300cm long, 200cm wide, and 120cm high, with a medium layer thickness of 20cm, a floating ball layer thickness of 40cm, and a confluence tank width of 40cm. Stainless steel mesh is laid between different media, the mesh size is 1mm*1mm, the medium layer uses pebbles with a diameter of about 5cm (with kaolin mixed in it), and the outlet at the bottom of the oxidation tank must be within the width of the lower channel; the bamboo mesh size is 0.5cm *0.5cm; the overflow port is 10cm lower than the water inlet; the size of the floating ball is 150mm, the cement used to build the oxidation tank is marked as C25, the surrounding walls are unified into 24 walls, and the bottom of the strengthening tank is poured with 20cm thick concrete; the outlet at the bottom of the oxidation tank It must be 20cm higher than the bottom of the confluence trough below it, and the confluence trough that receives the water must be hardened at least 1 meter long; large stones are laid outside the confluence trough to slow down the erosion of the outlet of the confluence trough on the bottom of the ditch. The height of the outlet of the confluence tank is 30cm lower than the overflow.

The vertical height of the overflow port 2 based on the bottom of the oxidation tank body is smaller than the vertical height of the water inlet.

The buoyant layer 7 is provided with a plurality of buoyant bodies.

The water outlet of the confluence tank is lower than the overflow port on the right side of the oxidation tank.

The utility model provides a novel multi-functional oxidation pond for rural domestic sewage treatment. This method of treating rural domestic sewage is economical, efficient, and can be harmless. The water quality standard for constructed wetland in the Technical Specifications for Sewage Treatment Engineering; solved the environmental pollution caused by rural domestic sewage, solved the potential safety hazards in rural water sources and exacerbated the crisis of fresh water resources, thus ensuring water for the sustainable development of rural society Environmental safety issues.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. a kind of Multifunction oxidation pond for rural domestic sewage treatment, it is characterised in that it is dirty that this is used for life in the countryside The Multifunction oxidation pond of water process is provided with oxidation pond body, is provided with water inlet, on the right side of oxidation pond body on the left of oxidation pond body Overfall is provided with, overfall is externally provided with collecting tray, top is provided with medium apparatus in oxidation pond body, the medium apparatus are arranged There are common brick layer, dielectric layer, be provided with stainless (steel) wire between common brick layer and dielectric layer, between dielectric layer and ball float layer, be provided with bamboo weaving Net, the common brick layer are located at dielectric layer top, and the medium apparatus bottom is provided with ball float layer, and ball float layer bottom is provided with water outlet Mouthful, delivery port connection collecting tray.

2. the Multifunction oxidation pond of rural domestic sewage treatment is used for as claimed in claim 1, it is characterised in that described Dielectric layer is made up of the medium of cobble or high absorption property.

3. the Multifunction oxidation pond of rural domestic sewage treatment is used for as claimed in claim 1, it is characterised in that described Vertical height of the overfall on the basis of aoxidizing pond body bottom is less than water inlet vertical height.

4. the Multifunction oxidation pond of rural domestic sewage treatment is used for as claimed in claim 1, it is characterised in that described Ball float layer is provided with multiple floating ball bodies.

5. the Multifunction oxidation pond of rural domestic sewage treatment is used for as claimed in claim 1, it is characterised in that described Collecting tray delivery port is less than the overfall on the right side of oxidation pond.