6 results about "Stormwater pollution" patented technology

The utility model belongs to the field of environmental protection and water supply and drainage engineering technology, especially relate to a kind of initial rainwater regulating reservoir liquid level intelligent regulation and control device, including water storage pool body, cover and baffle etc., cover is installed in the upper portion of water storage pool body, and the upper opening of water storage pool body is blocked, baffle is fixedly connected in the inside of water storage pool body, and the inside of water storage pool body is separated into two independent water storage spaces. Two independent water storage spaces are formed by the baffle, the water quality detector is used to monitor the rainwater pollution degree in real time, and the electromagnetic valve one and the electromagnetic valve two in the intelligent regulation and control assembly are used to realize the automatic conduction of the corresponding channel of the shunt pipe, so that the rainwater is introduced into the corresponding water storage space through two water inlet pipes, effectively solving the problems of inaccurate identification, unclear classification and lack of targetedness in traditional initial rainwater control, and realizing efficient classification collection and accurate management of rainwater with different pollution degrees.

The utility model discloses a kind of purification devices achieving shunt treatment runoff rainwater pollution. Rainwater contains organic pollutants, nitrogen, phosphorus etc. after being treated by rainwater garden, concentration is still relatively high. The utility model includes rainwater garden, plants J1 are sequentially arranged from top to bottom, planting soil J2, composite filler J3, cobblestone J4;Permeable geotextile K1 is arranged between planting soil J2 and composite filler J3, between composite filler J3 and cobblestone J4;Cobblestone J4 bottom is provided with impermeable membrane K2;Rainwater garden is provided with liquid level control well B inside, overflow well A is arranged in liquid level control well B;Perforated pipe F1 is arranged in cobblestone J4, perforated pipe F1 is communicated to the inside of liquid level control well B, and liquid level control well B is communicated to reuse water tank C by water outlet pipe F3;Overflow well A is communicated to rainwater inspection well by water outlet pipe F2. The utility model reduces the concentration of pollutants in discharged rainwater, and relieves water environmental pollution.

The application provides a municipal road drainage method and belongs to the technical field of municipal drainage. The technical scheme points include the following: real-time monitoring of the pressure pulsation amplitude of all inspection wells of the rainwater pipe network, taking the inspection well with the maximum pulsation amplitude as a dynamic control node; starting the pressure wave generator upstream of the node to output a reverse pressure wave; when the pulsation amplitude is greater than 25% of the hydrostatic pressure, periodically adjusting the valve opening degree of the water inlet / outlet connecting pipe section; through the opening and closing control of the intercepting valve and the shunt valve, the initial rainwater is introduced into the sewage treatment plant, and the later rainwater is discharged into the receiving water body; based on the vibration energy ratio, the sewage treatment aeration intensity is controlled; and when the pulsation amplitude of a new inspection well is 20±2% higher than the current node, the control node is updated. The method can effectively stabilize the pipe network pressure and realize accurate rainwater and sewage shunting, and is mainly used for improving the impact resistance of the urban drainage system and the environmental protection level.

The application relates to the technical field of environmental data processing, and discloses a monitoring, early warning and regulation system applied to urban rainwater pollution prevention and control, which comprises an online monitoring system, a river-inlet discharge port monitoring unit and a receiving water body monitoring unit, a rainfall monitoring unit, a discharge port monitoring and early warning model and a river-inlet discharge port interception and scheduling system. According to the classified sampling parameters of drainage in a rainfall event, rainwater can be finely classified into initial rainwater, mid-term rainwater and late rainwater; through intelligent regulation and control of the river-inlet discharge port interception gate and fine processing, the rainwater pollution prevention and control cost can be reduced and the efficiency can be improved, and scientific and intelligent rainwater pollution diversion can be realized.

The application discloses a kind of urban road rainwater runoff grading treatment system and method, it is related to urban rainwater pollution treatment technical field.For the problem that existing system is difficult to monitor multiple index water quality in real time, accurately identify pollution degree and lack of dynamic of shunt control, the system is equipped with multi-source spectral water quality monitor at pipe network end, real-time monitoring turbidity, COD, TOC and heavy metal concentration, control center accesses rainfall intensity data, calculates pollutant load instantaneous rate by weighted summation formula L , according to L Comparison result of threshold value, rainwater is distributed to enhanced treatment unit containing cyclone grit, electrochemical degradation of heavy metals and chemical flocculation unit, biological aerated filter system or horizontal flow sedimentation tank in controllable shunt module in shunt well.Mainly used to realize rainwater quality efficient treatment and resource recycling, guarantee the safety of receiving water body.

This invention discloses a high-performance adsorption building material and a rainwater purification method, belonging to the field of permeable brick technology. The high-performance adsorption building material includes a permeable brick body, which comprises a sealed, impermeable outer shell. Inside the sealed, impermeable outer shell, from top to bottom, are arranged a surface layer, a middle layer, an isolation layer, and a bottom layer. The surface layer is a filtration and adsorption layer used for gradient filtration of rainwater and interception of large particles. The middle layer is an adsorption and purification layer used for gradient filtration to achieve coarse and fine adsorption of rainwater pollutants. The bottom layer is a collection and diversion layer that uses a grid to centrally collect and export rainwater. The isolation layer separates the middle layer from the bottom layer, temporarily storing rainwater and supporting the middle and surface layers. The purpose of this invention is to provide a high-performance adsorption building material and a rainwater purification method, solving the problems of traditional permeable brick materials having a simple structure, poor rainwater purification effect, and inability to collect and reuse rainwater.