A kind of based on composite vertical current artificial wetland water recycling device and method
Technical field
The present invention relates to the single-apartment Treated sewage reusing device of artificial swamp, particularly relate to a kind of based on composite vertical current artificial wetland water recycling device and method.
Background technology
Along with the economic growth and social progress of China, the requirement of people to living environment improves constantly, and in recent years, ecological residence, the theory of green building is wide-spread, embodies all to some extent at home in many developments.Its design concept is that residential quarters not only will possess inhabitation function, will provide pleasing, the landscape environment of contributing to one's peace of mind of inner tranquility for resident simultaneously, and in the construction requiring community and use procedure, realizes the recycling of resource and the energy, then save, and reclaims and circulation.Residential quarters usually use water scenery environmental protect on view, and the requirement of people to water scenery has driven the consumption of water resources.But China is the country that a water resources is poor, and government advocates Constructing Water-saved Society always.This just has higher requirement to the Water Environment System of house, not only will consider the view of water surrounding, will realize water resources recycle and the water pollution control of house simultaneously.
Treated sewage reusing from last century the fifties start application abroad, become the important channel solving shortage of water resources and pollution, obtained in the many cities of China and promote the use of.The technique that current Treated sewage reusing adopts mainly comprises grid, coagulating sedimentation, the process such as biochemical treatment and filtration, and need to build treatment facility separately, not only cost is high, and floor space is large, and maintenance management bothers, and is not suitable for the single-family homes that inhabitation number is few.
At present, artificial swamp has that to build maintenance cost low, and energy consumption is low, and operating performance is reliable, and management is simple, the advantage that landscape effect is good.But simultaneously also Shortcomings part, as floor space is large, the restriction of climate condition is large, and easily produce alluvial, latch up phenomenon, particular type wetland also can grow mosquitos and flies.
Summary of the invention
Large in order to overcome existing artificial wet land system floor space, be not suitable for distributing single-family homes, hydraulics is not good, and wetland bed utilising efficiency is low, easy blocking, the problem that the clearance of nitrogen phosphorus is lower, provides a kind of based on composite vertical current artificial wetland water recycling device and method, can not only increase wetland bed utilising efficiency, and decrease blocking, improve the processing efficiency of middle water, reach to reduce and take up an area, be applicable to the object of distributing single-family homes.
The present invention is achieved through the following technical solutions:
A kind of based on composite vertical current artificial wetland water recycling device, comprise artificial swamp (10), the side of artificial swamp (10) is provided with regulating tank (8), water tank (6) from top to bottom, and the opposite side of artificial swamp (10) is provided with filtered water tank (15);
Described artificial swamp comprises from top to bottom successively: vegetable layer (19), metalling (20), pedosphere (21), slag and Wingdale mixolimnion (22), grains of sand layer (23), metalling (24);
Water distributor (9) is connected with between described regulating tank (8) and pedosphere (21);
Described metalling (24) bottom is provided with flowing hole (11).
Be provided with disinfection by ultraviolet light groove (14) in described filtered water tank (15), between artificial swamp (10) and disinfection by ultraviolet light groove (14), be provided with wetland effluent pipe (13).
The middle part of artificial swamp (10) is provided with training wall (12), and artificial swamp (10) is divided into two pieces of wetland units by training wall (12), and there is a flowing hole (11) training wall (12) below.
Place pump group (7) in described regulating tank (8), this pump group (7) is made up of water pump and aerator.
The upper side wall of described water tank (6) is provided with rainwater and sanitary sewage water inlet pipe (1), upflow tube (2) and one prevent suspended particulate from entering screen cloth (5) in water tank (6).
Regulating tank (8) is also provided with the regulating tank blow-down pipe (3) for its internal water accumulation of emptying.
The upper side wall of described filtered water tank (15) is provided with filtered water tank filling pipe (16) and filtered water tank rising pipe (17), and lower wall is provided with the filtered water tank blow-down pipe (18) for its internal water accumulation of emptying.
Adopt the above-mentioned water return method based on composite vertical current artificial wetland water recycling device as follows:
Rainwater and sanitary sewage enter water tank (6) by after screen cloth (5) filtering suspended particulate after being collected by rainwater and sanitary sewage water inlet pipe (1), water in water tank (6) by hydraulic pressure effect enter top regulating tank (8) in and pressurizeed by the water pump of pump group (7), pedosphere (21) is entered again by water distributor (9), then vegetable layer (19) is infiltrated from top to bottom successively, metalling (20), pedosphere (21), slag and Wingdale mixolimnion (22), grains of sand layer (23), metalling (24), flowing hole (11) eventually through training wall (12) below removes water pollutant, and realize upward flow and lower replacing to stream, upper and lower water layer is made to be able to hybrid switching, change the flow condition of Traditional Man wetland.
After the water entering artificial swamp (10) is cleaned, after being introduced into disinfection by ultraviolet light groove (14) sterilization by wetland effluent pipe (13), enter filtered water tank (15).
The present invention, relative to prior art, has following advantage and effect:
(1) apparatus design is compact, and floor space is little, and processing efficiency is high.Be designed to 1.8 cubes.Sewage average day, generation was 200L, maximum day generation be 0.9-1m3, getting peaking variation factor is 2.3, then artificial swamp pond processing power is 0.5m3/d.
(2) can be combined well with house itself, not only realize treatment in situ and the recycling of separate house waste water, water saving, improve the utilization ratio of water, and played landscape value.The distributing design of single-apartment simultaneously can save the huge investment of pipe network in Sewage treatment systems, applied widely.
(3) current have downstream, up stream, upper and lower water layer is made to be able to hybrid switching, change the hydraulics of Traditional Man wetland, increase the flowing tortuosity of current in wetland bed, extend sewage flow process, add the duration of contact of sewage and matrix, also can prevent wetland bed interior " short flow phenomenon " simultaneously, improve wetland bed utilising efficiency.
(4) have employed the higher slag (blast furnace slag) of tp removal rate and Wingdale matrix packed bed body, different gradation according to each filler configures, the porosity of a body can be made to improve, prevent the blockage problem of wetland, achieve again the efficient removal of phosphorus.Adopt blast furnace slag-Wingdale mixolimnion, compared to common soil, sandstone, has better Nitrogen/Phosphorus Removal.According to water quality needs, can aeration aerating in regulating tank, be combined with follow-up artificial wetland treatment unit, realize the reaction of aerobic and double oxygen, remove nitrogen, phosphorus further.
(5) device relies on run by gravity to collect rainwater and sanitary wastewater, does not need to use water pump etc. to provide extra power, saves the energy.
(6) in regulating tank, small-sized aerator can be set, according to water quality needs, can be the process of subsequent artefacts's wetland unit and oxygen is provided, realize the reaction of aerobic and double oxygen, facilitate the removal of nitrogen, phosphorus.Overcome variation water quality and Changes in weather simultaneously and bring impact on sewerage disposing, ensure outlet effect.
(7) by the design of training wall, current realize upward flow alternately and lower to stream, and upper and lower water layer is exchanged mixing, improves the hydraulics of traditional wetland, improves wetland bed utilization ratio.Finally enter filtered water tank, by bacterium and virus in apparatus for ultraviolet disinfection killing water wherein, effluent quality meets the reuse water Water Quality Control Indexes of urban reclaimed water water quality standard and water for scenic environment use.
This device, in less floor space, with compact unit design, realizes the collection of sanitary wastewater and rainwater, process and reuse.Artificial swamp is divided into two by training wall, realize upward flow alternately and lower to stream by the flowing hole of bottom, fully contact between current with filler, extend the duration of contact of storm wastewater and matrix, add wetland bed producing level, improve sewerage disposing efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is Fig. 1 artificial swamp structural representation
Embodiment
Below in conjunction with specific embodiment, the present invention is more specifically described in detail.
Embodiment
As shown in Figure 1, 2.The present invention is a kind of based on composite vertical current artificial wetland water recycling device, comprise artificial swamp (10), the side of artificial swamp (10) is provided with regulating tank (8), water tank (6) from top to bottom, and the opposite side of artificial swamp (10) is provided with filtered water tank (15);
Described artificial swamp comprises from top to bottom successively: vegetable layer (19), metalling (20), pedosphere (21), slag and Wingdale mixolimnion (22), grains of sand layer (23), metalling (24); By plant absorption wherein, microbiological deterioration, physical adsorption, water pollutant is removed in the physical chemistry such as physical filtering and precipitation and biological combined action.
Slag adopts blast furnace slag, and grains of sand layer (23) can adopt coarse sand, and effect is to prevent the blast furnace slag on slag and Wingdale mixolimnion (22) and limestone particle to drop blocking filler.
The vegetation of vegetable layer (19), main employing reed that is perennial, that comparatively resist cold, cattail.Single reed, or reed cattail miscegenation.
Water distributor (9) is connected with between described regulating tank (8) and pedosphere (21);
Described metalling (24) bottom is provided with flowing hole (11).
Be provided with disinfection by ultraviolet light groove (14) in described filtered water tank (15), between artificial swamp (10) and disinfection by ultraviolet light groove (14), be provided with wetland effluent pipe (13).
The middle part of described artificial swamp (10) is provided with training wall (12), artificial swamp (10) is divided into two pieces of wetland units by training wall (12), and there is a flowing hole (11) training wall (12) below.Flowing hole (11) depth-width ratio of training wall (12) below is 3:7.
Place pump group (7) in described regulating tank (8), this pump group (7) is made up of water pump and aerator.
The upper side wall of described water tank (6) is provided with rainwater and sanitary sewage water inlet pipe (1), upflow tube (2) and one prevent suspended particulate from entering screen cloth (5) in water tank (6).
Regulating tank (8) is also provided with the regulating tank blow-down pipe (3) for its internal water accumulation of emptying.
The upper side wall of described filtered water tank (15) is provided with filtered water tank filling pipe (16) and filtered water tank rising pipe (17), and lower wall is provided with the filtered water tank blow-down pipe (18) for its internal water accumulation of emptying.
Adopt the above-mentioned water return method based on composite vertical current artificial wetland water recycling device as follows:
Rainwater and sanitary sewage enter water tank (6) by after screen cloth (5) filtering suspended particulate after being collected by rainwater and sanitary sewage water inlet pipe (1), water in water tank (6) by hydraulic pressure effect enter top regulating tank (8) in and pressurizeed by the water pump of pump group (7), pedosphere (21) is entered again by water distributor (9), then vegetable layer (19) is infiltrated from top to bottom successively, metalling (20), pedosphere (21), slag and Wingdale mixolimnion (22), grains of sand layer (23), metalling (24), flowing hole (11) eventually through training wall (12) below removes water pollutant, and realize upward flow and lower replacing to stream, upper and lower water layer is made to be able to hybrid switching, change the flow condition of Traditional Man wetland.
After the water entering artificial swamp (10) is cleaned, after being introduced into disinfection by ultraviolet light groove (14) sterilization by wetland effluent pipe (13), enter filtered water tank (15).
Under normal weather, the daily handling ability of artificial swamp (10) is 0.2m3, and the residence time is 2 days; Rainstorm weather, daily handling ability reaches 0.5m3, and the residence time is 1 day.Under rainstorm weather, by the diluting effect of a large amount of rainwater, sewage quality is more clean, and 1 day residence time can meet qualified discharge.
Middle water after being purified enters the disinfection by ultraviolet light groove (14) in filtered water tank (15) by 4 wetland effluent pipes (13).Disinfection by ultraviolet light groove (14) is provided with small-sized apparatus for ultraviolet disinfection, and centering water carries out disinfection sterilizing.Middle water water quality now has met the reuse water Water Quality Control Indexes of urban reclaimed water water quality standard and water for scenic environment use.
Middle water in disinfection by ultraviolet light groove (14) enters in filtered water tank (15) by the flowing hole on it, and its designed size is 1m3 (1m × 1m × 1m).Middle water in filtered water tank (15) is gone out, as landscape water by filtered water tank rising pipe (17) overflow on it.In addition when rainstorm weather, due to the diluting effect of heavy rain, water quality is better, can combine retaining with regulating tank (8).Filtered water tank (15) is upper also has filtered water tank blow-down pipe (18), overhauls for filtered water tank (15).
As mentioned above, just the present invention can be realized preferably.
Embodiments of the present invention are not restricted to the described embodiments; other are any do not deviate from spirit of the present invention and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.