CN103896418B - One takes out box type sewage purification system and using method thereof - Google Patents

Abstract

The invention discloses a box-pumping sewage purification system and a method for using the system, which comprises a sand sink, a fence is arranged between the sand sink and the sewage ditch, the sand sink is connected to the water inlet of the pump box-type water purification device, and the pump box The type water purification device is composed of a multi-layer frame with multiple grids on each layer. Each grid can be inserted into a box. The top of the box is open, the bottom is grid-shaped and the bottom is laid with nets. The box is filled with biomass ash filler , The bottom of the pumping box type water purification device is sealed and provided with a water outlet, and the water outlet is connected to the water outlet pipe. The beneficial effect of the invention is that the sewage scattered in rural areas can be purified conveniently.

Description

A pumping box type sewage purification system and its application method

technical field

The invention belongs to the field of domestic sewage purification equipment in rural areas, and relates to a pumping box type sewage purification system and a use method thereof.

Background technique

Domestic sewage refers to the waste water generated by urban authorities, schools and residents in their daily life, including toilet excrement, laundry and bath water, household drainage such as kitchens, and drainage from commercial, hospital and entertainment venues. It contains a large amount of nitrogen, phosphorus and sulfur organic matter, as well as bacteria, viruses and parasite eggs. Compared with industrial sewage, the concentration of pollutants contained in domestic sewage is lower, and it is more easily affected by people's living habits, work and rest rules, economic conditions, living standards and other conditions. At present, there are many ways to treat domestic sewage. In urban areas, biological contact membrane method, two-stage activated sludge method (AB method), anaerobic biological filter method and aerated biological filter method are mainly used. The effect is good, and the daily treatment capacity of domestic sewage is large. It is an excellent choice for centralized treatment of domestic sewage in urban areas. However, in rural areas, due to the small population and widespread and scattered residence, the domestic sewage discharge is relatively small and has a strong time period. Most of the domestic sewage is directly discharged into the soil or rivers without treatment, causing non-point source pollution. A source of environmental degradation. At the same time, due to the limitations of capital, technology and geographical conditions, the decentralized rural domestic sewage cannot be treated in the centralized manner of urban sewage, and it is also difficult to apply large-scale modern treatment processes, which just promote the decentralized domestic sewage treatment technology in rural areas. regional applications. Biomass ash is a kind of biological agent produced by burning plant straw at high temperature, and the carbon and nitrogen organic matter in it is basically burned out. Its particle size is mostly below 0.25mm, loose and porous, with an average density of 1g/cm ³ , and a maximum adsorption capacity of phosphorus of 30g/kg, which is 6 times that of clay, and has strong adsorption performance. As a special kind of biomass, the development and utilization of biomass ash is relatively weak. If the strong adsorption performance of biomass ash is used in the environmental field, it will produce greater ecological and social benefits for the prevention and control of rural non-point source pollution and ecological environment management in my country.

Contents of the invention

The purpose of the present invention is to provide a box-type sewage purification system and its use method, which solves the problem that the existing rural domestic sewage is scattered and there is no effective treatment of rural scattered sewage purification systems.

Another object of the present invention is to provide a method for using a pumping box type sewage purification system.

The technical solution adopted in the present invention comprises sand sinking, a fence is arranged between the sand sinking and the sewage ditch, and the sand sinking is connected to the water inlet of the pumping box type water purification device, and the pumping box type water purification device is composed of multiple layers and Each layer is composed of a frame of multiple grids. Each grid can be inserted into a box. The top of the box is open, the bottom is grid-shaped and the bottom is laid with nets. The box is filled with biomass ash filling, and the bottom of the pumping box type water purification device is sealed. Moreover, a water outlet is provided, and the water outlet is connected with a water outlet pipeline. The frame of the box-type water purification device is composed of stone strips; the overall length of the box-type water purification device is 225cm, width 50cm, and height 170cm. It is stainless steel, and the mesh is a nylon mesh with meshes smaller than sand. The biomass ash filling material is, from bottom to top, a sandstone layer, a soil layer, a biomass ash layer, a soil layer, a biomass ash layer, and a soil layer. The thickness of each layer from bottom to top is: sandstone layer 1cm, soil layer 4cm, biomass ash layer 15cm, soil layer 5cm, biomass ash layer 20cm, soil layer 5cm. The biomass ash filling of the uppermost box is covered with 2 cm thick sand and gravel.

Another technical solution of the present invention is a method for using a pumping box type sewage purification system. After the pumping box type water purification device has been in operation for 90 days, the box is pulled out, the biomass ash filler is poured out, and new bio Substance ash filling, re-insert the box into the box water purification unit.

The beneficial effect of the invention is that the sewage scattered in rural areas can be purified conveniently.

Description of drawings

Fig. 1 is a schematic structural view of a pumping box type sewage purification system of the present invention.

Among the figure, 1. Fence, 2. Sand sinking, 3. Water inlet, 4. Pumping box type water purification device, 5. Water outlet, 6. Water outlet pipe, 7. Box.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, it includes a sand sinking 2, a fence 1 is arranged between the sand sinking 2 and the sewage ditch, the sand sinking 2 is connected to the water inlet 3 of the pumping box type water purification device 4, and the pumping box type water purification device 4 It is composed of a multi-layer frame with multiple grids on each layer. Each grid can be inserted into a box 7. The top of the box 7 is open, the bottom is grid-like and the bottom is laid with nets. The box 7 is filled with biomass ash fillers. The pumping box type water purification device 4 is sealed at the bottom and is provided with a water outlet 5, and the water outlet 5 is connected to the water outlet pipe 6. The frame of pumping box type water purification device 4 is made of strip stone; Pumping box type water purification device 4 is 225cm long, wide 50cm, high 170cm, is divided into 3 layers, and each layer inserts 4 boxes side by side, and each layer is 50cm high; 7. The overall material is stainless steel, and the net is a nylon net with meshes smaller than sand. The biomass ash filling material is, from bottom to top, a sandstone layer, a soil layer, a biomass ash layer, a soil layer, a biomass ash layer, and a soil layer. The thickness of each layer from bottom to top is: sandstone layer 1cm, soil layer 4cm, biomass ash layer 15cm, soil layer 5cm, biomass ash layer 20cm, soil layer 5cm. The biomass ash filling of the uppermost layer of the box 7 is covered with 2cm thick sandstone.

The main steps of the system work are: filling the box with biomass ash, the filling order from bottom to top is 1cm sand, 4cm soil, 15cm biomass ash, 5cm soil, 20cm biomass ash, 5cm soil. And the uppermost box is covered with 2cm of sand and gravel to protect the filler from being washed away by sewage, the lower layer of sand is to ensure the smooth flow of water, and the middle is filled with soil so that domestic sewage can interact with the biomass ash layer for a long time to ensure adsorption. fully carried out. When the domestic sewage in the gutter flows to the pumping box type water purification device 4, it first passes through the fence 1 to intercept the floating matter in the sewage, and the sand sink 2 is used to settle the silt in the sewage. After being intercepted and settled, the sewage flows into the box 7 of the pumping box-type water purification device 4 through multiple water inlets 3, and the domestic sewage is treated and purified layer by layer. The water port 5 and the water outlet pipe 6 are discharged. The device runs for a period of time, preferably after 90 days, the box 7 is taken out, the saturated biomass ash filler is poured out, and the filler is refilled. Collect the saturated biomass ash filling and apply it to the soil as fertilizer and amendment.

The present invention takes the recycling of biomass ash resources as the starting point, takes the purification of dispersed rural domestic sewage as the main purpose, and relies on the pumping box type water purification device 4 to provide a method for treating domestic sewage with biomass ash as raw material. system and method, in order to make full and reasonable use of biomass ash resources, so as to realize the efficient utilization of "agricultural production-sewage treatment-agricultural production" cycle. The process of treating domestic sewage with biomass ash according to the present invention, the main raw material is biomass ash burned at high temperature, the temperature is 800°C, mainly based on the following technical ideas: 1. Utilize biomass ash for effective adsorption N, P and organic pollutants in rural domestic sewage. Biomass ash is a porous medium with fine particles and a large number of capillary pores inside. It can fully contact with domestic sewage and absorb nitrogen, phosphorus and Organic pollutants, reducing the discharge of pollutants to natural water bodies and soils. It not only solves the problem of non-point source pollution caused by random discharge of domestic sewage, but also makes full use of biomass ash resources to avoid waste of biomass ash resources. 2. Biomass ash slag is porous and can maintain a large amount of nitrogen, phosphorus and organic matter. It is a good soil improver and fertilizer. Applying the biomass ash that has absorbed domestic sewage into the soil can improve the water permeability and air permeability of the soil, and improve the shortcomings of barren and sticky soil in the south. 3. The box-pumping device solves the disadvantage that the domestic sewage adsorbent is difficult to replace, realizes the adjustability and replacement of the water purification material, and facilitates the operation and adjustment of the device. The use of biomass ash as the adsorbent is characterized by small investment, low cost, quick effect and good water purification effect.

Claims (1)

1. take out box type sewage purification system for one kind, it is characterized in that: comprise desilting water hole (2), fence (1) is provided with between desilting water hole (2) and side bilge, desilting water hole (2) connects takes out the water-in (3) of box purifier (4), described in take out box purifier (4) framework be made up of the rectangular slab of stone; Take out the overall long 225cm of box purifier (4), wide 50cm, high 170cm, be divided into 3 layers, every layer is inserted 4 chests (7), every floor height 50cm side by side; Chest (7) open top, bottom are latticed and bottom lapping, biomass lime-ash weighting material is equipped with in chest (7) the inside, take out box purifier (4) sealed bottom and be provided with water outlet (5), water outlet (5) connects outlet conduit (6);

Described chest (7) integral material is stainless steel, and described net is the nylon wire that mesh is less than sand;

The thick sandstone of 2cm are covered above the biomass lime-ash weighting material of the chest (7) of the superiors;

Describedly take out box purifier (4) in operation after 90 days, extract chest (7) out, pour out described biomass lime-ash weighting material, fill new biomass lime-ash weighting material, again chest (7) is inserted and take out in box purifier (4);

Described biomass lime-ash weighting material is sandstone layer, pedosphere, biomass ash slag blanket, pedosphere, biomass ash slag blanket, pedosphere from the bottom to top;

The thickness of described biomass lime-ash weighting material every one deck is from the bottom to top: sandstone layer 1cm, pedosphere 4cm, biomass ash slag blanket 15cm, pedosphere 5cm, biomass ash slag blanket 20cm, pedosphere 5cm.