Solutions to Urban Rainwater Collection, Utilization and Pro

Rainwater discarding device

At the initial stage of rainfall, the first 2-5 minutes of rainwater is generally polluted seriously and the discharge is relatively small. When passing through the initial abandoned flow filter, rainwater will first be discharged through the low-level open sewage pipe due to the effect of gravity. After the increase of rainfall, the pressure on the baffle increases. Under the action of water flow pressure, the floating ball located at the upper end of the sewage pipe closes the sewage pipe, and the liquid level in the barrel rises. Rainwater is filtered through a horizontal filter screen and then flows to the outlet for collection. After the rain stops, with the decrease of rainwater stored in the device, the float ball is automatically reset under the spring elastic force, and the garbage produced by the filter in the barrel is taken out, thus realizing the functions of discarding, filtering and automatic sewage discharge of the initial rainwater.
 

Characteristic:

_is the simplest and most effective abandonment and filtration device in China at present.

Built-in horizontal filters to preliminarily filter the rainwater collected;

_The device has many functions and can complete the initial rainwater discarding, filtering and automatic sewage discharge.

_The whole set of device uses rainwater flow to adjust automatically without any electrical device of power box, and has high reliability and stability.

UPVC stainless steel material is made of high quality material, and its service life is much longer than that of electric devices.
 

Rainwater automatic filter

The product uses the characteristics of gravity flow of rainwater to separate the garbage and water in rainwater automatically, so as to get cleaner rainwater.

Rainwater flows vertically through elbows in the device, and encounters umbrella-shaped shunt structure, so that rainwater flows along the umbrella-shaped edge, contacts the vertical filter, rainwater flows to the clean water chamber after filtering through the filter, and garbage falls to the garbage receiving port along the network surface, so that rainwater can be filtered, garbage can be shunted and discharged automatically.

Rainwater automatic filter has high filtering accuracy, and the diameter of the net reaches 0.4mm. It is usually installed after filtrating through sewage interception and discarded flow. The filtered rainwater can be directly greened and sprinkled, which is very effective.

Characteristic:

_Filtration, sewage automatically operates by rainwater gravity, rainwater and sewage are separated automatically, rainwater will not lose, sewage will be separated automatically under the action of gravity and scouring;

_Equipped with 0.4mm stainless steel filter, after filtering, it can be directly green and sprinkled;

_Maintenance cycle is long, usually only need half a year or a year or so to open and clean once;

High quality stainless steel is used for internal material, and its service life is longer.

_PE finished well, equipped with elevation accessories, can be directly buried, simple and convenient installation, suitable for installation on risers and underground manifolds.

Modular rainwater collection tank

The filtered water enters the modular rainwater collection tank, is lifted by a pump, aerated by a jet, and filtered through ceramsite. A jet aerator connected with the outlet pipeline of the pump is installed at the bottom of the pool for efficient jet aeration. The air and water mix in the diffuse section of the jet and emit, forming a strong mixing flow in the pool, shearing the water flow, so that the air sucked by negative pressure is thoroughly crushed, a large amount of oxygen is dissolved into the water, the utilization rate of oxygen reaches 20%, and the air and water are torn up by a high-speed rotating impeller in the mixing disc. Gas-liquid turbulent mixing and high-speed ejection from the outlet. Because of the strong injection of water, air is cut into a large number of tiny bubbles, which greatly improves the mass transfer volume and forms a floating effective flow, circulating a large amount of oxygen is dissolved in water, has a very high oxygen utilization rate, meets the biochemical needs of microorganisms, and makes the removal effect of organic matter in the oxygen tank in a relatively stable state.

Processing facility location requirements

_Located downstream of rainwater pipeline for rainwater collection;

_The electric motor control pipeline transportation distance is short, the investment is low, is advantageous to the management;

The site is spacious and has no influence from other pipelines, which is conducive to construction.