Technical Description of Integrated Water Purification Device

1. Overview: The integrated water purification device includes eight main units: water distribution, reaction, sedimentation, filtration, water collection, sludge collection, and automatic backwashing. It is equipped with PPC inclined pipe fillers and various specifications of refined filter materials. The main shell of the equipment is made of carbon steel, and special coatings are used for anti-corrosion treatment inside and outside. It has a long service life, a wide range of applications, and excellent performance. It is widely used in the construction and renovation of large, medium, and small water companies (stations). The device has advanced technology, novel design, compact structure, saves area and investment, simple management, and convenient operation. The turbidity of the treated source water is less than 3000mg/L (up to 3000mg/L in a short time), and the turbidity of the effluent is not less than 3mg/L. After chlorine disinfection, it can meet the national drinking water standard.

2. Working principle: Water purification device system: composed of coagulation tank, sedimentation tank, filter tank, water quality stabilization dosing device, backwash device, water pump, and electrical control cabinet. Coagulation tank: WTH pipeline static mixer is used to automatically mix coagulants through hydraulic power. The raw water with coagulant added enters the coagulation tank through the inlet pipe, and is mixed with a special vortex reaction and coagulant to fully contact the suspended solids in the water and coagulant to form alum flowers. Not affected by changes in water volume. Sedimentation tank: After coagulating with coagulant, water forms alum flowers and flows to the sedimentation tank of the equipment for sedimentation. The sedimentation tank adopts inclined tube sedimentation method, with a surface load of 7-8m3/m2 · h.

Filter tank: The settled water flows to the filter tank for filtration, with a filter structure; The bottom is a water distribution pipe. The middle part is made of quartz sand, and the upper part is made of white coal. The filtration speed is 7-10m/h, and the flushing intensity is 14-16 liters/meter for 2 seconds. After that, the clear water flows into the clean water tank for disinfection and treatment before drinking. The backwash cycle of the filter is about 12 hours, and the backwash time is 5-10 minutes. The filtration part is filtered using polystyrene filter beads.

3. Performance advantages

(1) The water purification device itself has achieved fully automatic operation through a series of operating procedures such as reaction, flocculation and sedimentation, water collection, water distribution, filtration, internal backwashing, and sludge discharge. The duty personnel only need to regularly monitor the water quality, and there is no need to operate and manage the water purification device.

(2) The high concentration flocculation layer can make the impurity particles in the raw water fully collide and contact with each other, increasing the probability of adsorption, thus adapting to various water temperatures and turbidity of the raw water. The removal rate of impurity particles is high, and the algae removal function is very good under the condition of adding algae removal agents.

(3) The fast sludge concentration chamber and adjustable automatic sludge discharge system can ensure the timely removal of excess sludge, thereby ensuring a good removal rate of impurities and particles.

(4) Flocculation and sedimentation effects ensure that the water quality of the sedimentation effluent remains in good condition.

(5) The innovative and innovative water collection system and relatively economical water collection head make the water collection more uniform and effective, not only improving the volume utilization coefficient, but also minimizing the water collection head.

(6) The automation of the water purification system ensures the filtration of the water purification system (when the turbidity of the raw water is less than 3000mg/l, the turbidity of the filtered water can be maintained at around 5mg/l), and can automatically backwash without the need for additional electrical equipment such as backwash pumps or air compressors. In addition, it saves a lot of infrastructure investment and daily operation, maintenance, and maintenance costs, and has a long service life.

(7) The low self consumption rate of equipment is about 3%, which plays a positive role in saving valuable water resources.

(8) The floor area is small, which can save more than 50% of the ground area compared to general water purification structures. The height is about 4.35 meters, and it can be installed indoors and outdoors.

(9) Easy to expand, renovate, relocate, or relocate for reuse.

(10) The infrastructure construction period is short, which is one fourth of the construction period of conventional clarification and filtration facilities.

(11) The height of the purified water outlet is ≥ 2m, and the clean water tank can be built as a semi aboveground type. The clean water pump is self priming and operates more reliably.

4. Technical parameter processing capacity: 200m3/h

Material: Q235 steel concrete tank with factory flat plate

Residence time: 6.5min

Filter zone flow rate: 7.2m/h

Surface load of sedimentation tank: 7-8m3/m2 · h

Filter layer thickness; 1200mm

Flushing intensity: 14-16 L/m2 · S

Flushing duration: 5-10 minutes

Total residence time: 40-50 minutes

Inlet pressure: 0.06-0.10MPa 

Reaction zone:

Water distribution area: perforated pipe water distribution retention time: 19min

Sedimentation zone:

Sedimentation method: inclined tube sedimentation

Specification of inclined pipe: Φ Installation at a horizontal 65 ° angle of 50mm Φ Installation at a horizontal 65 ° angle of 35mm

Filter area:

Filter material: according to the grading table requirements of the filter area

Water distribution method: porous plate with drainage cap

Operation mode: gravity flow

Recoil method: siphon recoil

Inlet pipe: DN200;

Outlet pipe: DN200;

Drainage pipe: DN600;

Sludge discharge pipe: DN300;

Pressure water pipe: DN80;

5. Construction and materials

(1) The integrated water purifier includes all main and additional materials (including the main body, inclined plate, filter material, sludge discharge system, water outlet system, inspection channel, inlet and outlet valves, etc.).

(2) Two sets of raw water pipe filters are installed on the inlet branch pipes of two water purifiers

(3) The tubular static mixer has a simple structure and a small footprint. Made of fiberglass material, it is easy to process, sturdy, durable, and corrosion-resistant. It adopts advanced foreign technology, with good mixing effect and small head loss; Serially connected in the transmission pipeline, without occupying additional land, saving engineering land area; No moving parts, all components only have hydraulic wear, long service life, and no maintenance required. The diameter of the mixer pipe is selected based on the economic flow rate, usually calculated at 0.9-1.2 meters per second; A large flow rate of 1.5 meters per second can be calculated for pipes with a diameter greater than 500 millimeters. When conditions permit, increase the pipe diameter by 50-100 millimeters to reduce head loss. The basic combination of mixer sections is considered as three sections, with a head loss of approximately 0.4-0.8 meters. The number of sections can also be increased or decreased according to the situation of the mixed medium. The water pressure inside the mixer pipe is considered to be 1.0 kg/cm2. Equipment processing can also be carried out based on actual pressure.

(4) The dosing device of the dosing system uses a metering pump or flow meter to add coagulants and coagulants. Used for adding basic aluminum chloride and equipped with a self flushing device. The dissolution tank is mechanically stirred, with a storage capacity of at least 18 hours, including valves and electrical control equipment. Each set of dosing devices is individually assembled on their respective combination racks, forming an independent whole with dosing pumps, solution tanks, buffers, filters, pipelines, valves, etc. According to relevant technical and quality requirements, the procurement of raw materials for manufacturing equipment, goods, and purchased supporting parts for the provided goods must be strictly reviewed, with reliable quality, accompanied by relevant performance warranty certificates, and able to meet the requirements of the equipment process before purchasing. The main materials of the dosing equipment are steel composite fiberglass and other materials. The equipment is welded using arc welding (argon arc welding), and there are no quality issues with the inspected welds; Carry out slag removal and polishing inside and outside the equipment; Under the condition of conducting a hydraulic test without leakage; Conduct appearance inspection, water pressure test, on-site acceptance test, and necessary corrosion resistance test in the factory, and be able to operate well under certain overload conditions.

(5) The disinfection system adopts a metering pump for dosing, considering pre and post dosing, for the dosing of bleaching essence (or bleaching powder), and is equipped with a self flushing device. The dissolution tank is mechanically stirred, with a storage capacity of at least 18 hours, including valves and electrical control equipment.

(6) The backwash system includes a complete set of equipment such as water pumps, air pumps, valves, and electrical control equipment. Adopting a double ring multi nozzle rotating flushing system, the flushing effect is good and the water consumption is low.

6. The thickness of the steel plate for the anti-corrosion water purifier component of the equipment is 10mm. The interior of the body is coated with two coats of red lead primer of 50-60um, and the top coat is coated with two coats of epoxy resin paint. The exterior of the body is coated with two coats of red lead antirust primer of 50-60um, and the top coat is coated with two coats of sky blue paint.

7. Operation and precautions

(1) The integrated water purifier in frozen areas should be installed indoors, while it can be installed outdoors in non frozen areas, but a top cover must be added to avoid polluting the water quality.

(2) Place the integrated water purification device on a flat site during installation to ensure uniform water discharge during normal operation. Various pipeline connection gate valves should have no air or water leakage and be eliminated.

(3) Before the operation of the equipment, it is necessary to eliminate debris in the pool and pay attention to the strict prevention of blockage in the inlet and outlet pipes.

(4) When heavily polluted water sources contain organic matter or algae, chlorination can be used to reduce chromaticity, destroy colloids in the water, remove odors, and prevent the growth of algae and moss in the pool.

(5) Before starting the equipment, half open the inlet valve, and then start the water pump. First, use a small amount of water with a normally open flow rate and increase the dosage of coagulant. After 60 minutes, open the large inlet valve again to increase the designed water volume and reduce the dosage of coagulant.

(6) When the equipment first recoils, the recoil gate should be adjusted to the given strength (based on not flushing out the filter material), and the recoil time should be controlled.

(7) The sewage pipe valve should be opened regularly to discharge the sludge from the sedimentation tank.

(8) Water quality measurement items: ① Regular comprehensive analysis and inspection of raw water and effluent quality by relevant units based on local conditions; ② The water plant conducts daily turbidity measurements of raw water, clarifier effluent, and filter effluent.

The above is the technical description of the "integrated water purification device" that Hongjie Water brings to you. We hope it can help you!

Shenzhen Hongjie Water Technology Co., Ltd. is an integrated high-tech enterprise specializing in product research and development, production, sales, engineering design, installation and debugging, technical consulting, and sales of supporting materials in the fields of industrial water treatment and drinking water treatment. Our main products include the design, manufacturing, installation, debugging, and maintenance of water treatment equipment, including pure water equipment, ultra pure water equipment, reverse osmosis equipment, GMP purified water equipment, EDI deionized water equipment, domestic sewage equipment, industrial wastewater equipment, softened water equipment, and reclaimed water reuse equipment, all of which are integrated into an environmentally friendly high-tech manufacturer.