Water before discharge into the sewer system must meet all approved standards. To do this, it is usually cleaned with a filter cartridge for storm sewers. The principle of operation of this node is quite simple. Dirty streams after rains are in the reservoir of the cartridge, where they are repeatedly cleaned. First, a rough preliminary purification takes place before water enters the box. A special grill on the lid traps branches, leaves and other large debris.
Sewage cleaning stages with filter cartridge
Next, the water is in the upper compartment of the device, where it is cleaned with a non-woven filter from the oil film and other elements. At the final stage, for final purification, water passes sorption filling in the second chamber. There is the separation of organic compounds, heavy metals, small particles and radionuclides.
Description
The filter cartridge for storm sewers is a fairly simple device, and it works the same. It consists of a fairly strong plastic case, which has a cylindrical shape. Inside is a filter. The cartridge is divided into two compartments. The first is intended for the mechanical purification of water by means of polyester fibers.
The second compartment is designed for sorption treatment, which involves the passage of sewage through a hydrophobic sorbent. For easier installation of the filter in the wells for storm sewers, mounting parts are provided on the device body.
Appointment and scope. Additional Design Features
The filter cartridge for storm sewers is designed to clean rain and melt water from all kinds of suspended particles, oil products, oils, fats and other organic substances. Structurally, the cartridge is a device:
- with lattice welded bottom;
- a shell;
- removable trellised cover;
- flange.
The latter is located at the top of the shell. Between the lower and upper gratings, the inner space is filled with filter material. It can be a combination of several layers. Each material has different properties. The flange is used to mount on the support ring. She is in the sewer well.
The removable cover allows filtering materials to be replaced if the quality of the water being purified has dropped below the standards. The filter cartridge for storm sewers can be used in those places where water, getting into the storm water inlet, picks up various harmful impurities according to the type of oil or mechanical.
Installation is usually carried out on:
- car washes;
- Gas station;
- ONE HUNDRED;
- near warehouses with chemicals;
- near garage complexes;
- in industrial and industrial areas;
- in places of private individual activity, which is associated with car repair.
Types of filter cartridges
To date, several types of filters are known, among them it should be distinguished:
When buying, you should get a seller’s recommendation. It will be based on the technical characteristics of the device. This should include the degree of wastewater treatment, throughput, size and weight. The capacity of the filter cartridge for sewage, the photo of which you can consider in the article, usually ranges from 4 to 32 m 3 / h. Efficiency will depend on the size of the suspended particles. With an increase in their fraction, the output content will be less.
Application features
Depending on the technical characteristics of the models, conclusions can be drawn about the features of the use of certain options. The device filter cartridge "Fops" for storm sewers has been described above. Now it’s time to find out what the technical characteristics of some devices are.
If you see a device with the marking FOPS-MU-0.58-0.9, then the diameter on the flange in this case is 580 mm. Productivity will vary from 2 to 4 m 3 / h. Height is 900 mm. The diameter of the well is 580 mm. The filter cartridge FOPS-MU-2.0-1.2 has a larger diameter along the flange. It is 1920 mm. Productivity is 16 m 3 / h. Height is 1200 mm. The diameter of the well is 2000 mm.
On the Fops filter storm water filter cartridges, the cleaning indicators will be as follows: if suspended solids are contained in a volume of 400 mg per liter, then after filtration this indicator will be 10 mg per 1 liter. If combined purification from suspended impurities is carried out, then at the entrance of petroleum products in a volume of 50 mg per liter at the exit, this volume will be 0.05 mg per 1 liter.
If the actions were correct during the installation and maintenance of the devices, the filter cartridge will be ready to last up to 5 years. The filter media will remain effective for up to 12 months of continuous use. But once a month it will be necessary to clean the cover of the device from stones, leaves, as well as to replace or flush the unit. Recent activities are carried out once a year or taking into account pollution.
Installation Features
The installation of a filter cartridge for storm sewers does not require dismantling of the stormwater; installation can be carried out in the existing system in several ways. The first involves installation on a support ring made of steel. It is located between the rings of the reinforced concrete well.
The installation of the cartridge will be carried out according to another technology if the effluents enter the well through pipes. Installation is carried out inside the well, however, the element must be located below the point of the supply pipe. The filter cartridge for storm sewers should be installed on top of the base of the well if drains enter through the hatch.
Description of the Polychim model
Polychim filter cartridges for storm sewers have a unique nanostructured carbon as a filler. On sale you can find special modifications for roads and bridges. The quality of treatment reaches a level suitable for fisheries.
The case is reliable and durable, made of HDPE. Designs are convenient for regular service. They are suitable for operation in earthquake-prone regions and cold climatic zones. The manufacturer has provided system overflow protection.
Such sewer filter cartridges are available in several versions. The specific parameters of the device are selected taking into account the composition of the wastewater, the performance of the system, taking into account the requirements for water quality, as well as the type of sorbents, diameter and height. The diameter of the filter cartridge can range from 580 to 1920 mm. Height varies from 900 to 1800 mm. The diameter is selected taking into account the diameter of the storm water inlet , where the filter cartridge is installed.
The choice of height will depend on:
- from the required performance;
- well heights;
- concentration of pollutants;
- water quality requirements.
For mechanical cleaning of effluents from film oil products, suspended solids and emulsified particles, filter cartridges with the FPM marking are used. If the effluents contain ammonium and metal ions, then the FPC filter cartridge should be used. For sorption purification from phenol, oil products and manganese ions, the FPS cartridge is used.
Why you should choose a storm filter cartridge
The cleaning element does not require connection to electrical networks, personnel intervention and complex maintenance. Installation is carried out without reconstruction of storm sewers and earthworks. Installation is carried out using a support flange in the form of a ring. It is installed under the saddle of the hatch, the dismantling of the plate is not carried out at the same time, the well closure is not touched.
The design is easily disassembled, so reloading the sorption filler is easy. The module is characterized by high strength, it has a cylindrical shape and selective porous layers. For any modern building, external engineering networks are needed. The operation of the building without them is impossible. Installation of systems requires the use of materials of appropriate quality, as well as the professionalism of the performers. A guarantee of a long and impeccable service will be a competent approach to laying engineering networks. Treatment plants for storm systems ensure the purity of the water at the disposal of man.
Multi-stage cleaning
Filter cartridges of surface runoff of all sizes and types can be used not only as individual units designed to remove a specific pollutant, but also used as a combination. In this case, several cartridges are installed, which are located in successive wells. This provides a deeper and more comprehensive wastewater treatment.
The design of the cleaning cartridges allows their use in bulk mode, where there is no possibility of connecting to electricity. The system will operate on a non-pressure basis. With a multi-stage scheme, the filter cartridge is installed in a network sewer well. The diameter of each of them can be from 1 to 2 m. Filter cartridges should be arranged in series. The exception is the primary well, which serves as a sump.