factory customized clarifier filter wastewater treatment water grit and sand separator screw removal system

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wastewater grit removal systems

Whether the application is capturing fine grit from sewage at a wastewater treatment plant, removing filter media from a trickling filter backwash at a water treatment plant or degritting wash water from industrial applications such as food and beverage processing, VoR Environmental has the grit removal equipment to suit your needs.

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CONTACT PERSON: Manager Qu TEL: FAX: E-MAIL: [email protected] WHATSAPP: OFFICE ADD: The North End of Langyatai Road, Qingdao, China WECHAT: JWT3065994549

grit separation and treatment - huber technology inc

In this section you may get comprehensive information about your contacts and the wordwide subsidiaries, offices and representatives within the HUBER group or you may send direct online information requests free of charge.

HUBER has over 45,000 operating installations at an international level. Due to our continued success and growth, we are seeking energetic and dedicated individuals. We offer you interesting jobs that require independent work within a motivated and committed team.

Our comprehensive product range offers you the best solution for any grit separation application, with longitudinal or circular grit traps and also by means of complete plants for complete mechanical wastewater treatment in a single and compact unit.

Based on our wide ranging experience and expertise, HUBER Engineers will design your customised, complete grit treatment system for your specific needs. All grit treatment process steps can be reliably fulfilled by state-of-the-art HUBER equipment.

For reasons of operating reliability of wastewater treatment plants it is necessary to separate the grit transported with the wastewater and other mineral materials from the digestable organic material. Separation of grit, gravel and other mineral matter is required to increase the reliability of wastewater treatment plant operation.

Good grit separation prevents operational problems, such as grit sedimentation in aeration tanks and digestors, reduces wear of equipment, such as pumps or sludge dewatering plants, and avoids clogging of sludge hoppers and sludge lines.

While as much as possible of the mineral matter should be removed, as much organic matter as possible should remain in the wastewater. Testing of the grit capture rate is usually done with a grit particle size of 0.2 mm. In combined sewer systems, approximately 60 l of grit can be removed from 1,000 m of wastewater.

The most common grit separating systems in use are grit channels, circular grit traps and vortex grit traps. Grit is either separated by gravity sedimentation (grit channels) or centrifugal force (circular and vortex grit traps).

Grit and mineral material from wastewater treatment plants or sewer and road cleaning is very variable and can either be more or less contaminated with organic particles or other foreign matter similar to domestic waste. Such contamination with in the heterogeneous mixture results in a relatively low dry residue content [DR], ranging between 40 % and 70 %, and in a relatively high loss on ignition [GV] in the range of 10-80 %. The purpose of a well performing grit treatment system is removal of grit up to 0.20 mm grain size and subsequent separation of the valuable recyclable grit and mineral fraction from the contamination material.

The end product of grit treatment should be regarded as a valuable product with a low loss on ignition (< 3 %) and a high DR (> 90 %). Grit treatment thus reduces both the disposal costs whilst providing a secondary raw material as a by product which can be reused and recycled.

As the composition of the polluted grit to be treated can vary greatly, depending on its source of production, the decision on which is the best suited treatment system is the deciding factor at the concept planning of a treatment plant.

If the grit to be treated is material from the grit trap of a wastewater treatment plant, the best worldwide proven solution is the HUBER Grit Washing Plant. The HUBER Grit Washing Plant ensures that the organics within the grit are washed out to such a degree that the treated grit has a loss on ignition of below 3 %, which allows low-cost grit disposal or direct reuse of the resultant grit. Many countries meanwhile also have legislation in place that defines the requirements for washed grit. In practice however, not only the effective separation of organic and mineral material is decisive, but also the retention of fine grit. The HUBER Grit Washing Plant takes this fact into account.

Grit from sewers or road pits or road refuse requires individually designed grit treatment systems. Depending on the system capacity, input material composition, requested material output, etc., the treatment technology has to be tailored to meet these specific requirements such as the following main process steps: acceptance tank, foreign matter separation, wash drum for preclassification, grit washing plant for separation of organic material.If the external supply and treatment of the wash water required for grit treatment cannot be provided, an additional wash water treatment unit can be offered as an option for recycling of the water necessary.On the basis of its wealth of worldwide experience in developing complete grit treatment systems, HUBER is able to provide a tailored concept for each individual grit treatment project.

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CONTACT PERSON: Manager Qu TEL: FAX: E-MAIL: [email protected] WHATSAPP: OFFICE ADD: The North End of Langyatai Road, Qingdao, China WECHAT: JWT3065994549

china custom grit classifier water and wastewater treatment manufacturers, suppliers - factory direct price - houpu

We supply high quality grit classifier water and wastewater treatment. We devoted ourselves to grit removal equipment many years,covering most of Europe, America, Africa and Asia market. We are expecting become your long team partner in China. Brand Name: HOUPU or Customized Type: Grit and Sand Classifier Min Order: 1 Sets Shipping Port: Shanghai Port Lead Time: Shipped in 15 days after payment Payment Terms:L/C, T/T, Western Union, Paypal

The grit classifier water and wastewater treatment consists of a sloping bottom trough and a screw conveyor. The sand deposited on the bottom of the tank is collected, lifted by a screw conveyor, drained and discharged. The screw diameter and the type of mine sand classifier vary depending on the amount of sand to be dewatered.

The grit classifier water and wastewater treatment has a spiral inclination angle of 25~30. The sand water mixture liquid enters the equipment from the inlet pipe, and the mixed liquid passes through the gathering box at the upper part of the separator, and the sand and organic matter of the mixed liquid are made under the action of the water flow. Separation, the sand water enters the sand collecting tank, and the particles with larger specific gravity (such as sand) fall due to their own weight, and are deposited on the bottom of the spiral groove. Under the pushing of the spiral blade, the material is lifted along the bottom of the inclined U-shaped groove, leaving After the liquid level, continue to move up a distance, the water in the sand gradually flows back into the water tank in the gap of the spiral grooved blade, the sand liquid gradually dries to the discharge port, and falls into other conveying devices by its own weight, and the supernatant liquid continuously After overflowing from the drainage raft, the organic matter flows out of the overflow tank with the vortex of the water flow, and flows back to the sewage well to achieve the separation of the sand water.

The grit classifier water and wastewater treatment is used for sheet sediment for separating gravel and other inorganic solids, and shaftless screw conveyor for dewatering and removing settling materials.

grit classifier water and wastewater treatment

Function Inflow of the grit/water mixture can be either under pressure or via gravity line. The tangential feed induces a rotary movement in the water which causes the heavier substances such as sand to sink to the apex of the funnel, where they are removed and dewatered via the screw conveyor. The grit is thus rendered substantially free of organic matter. The grit separator effects a continual separation of the grit from the waste water flow while reducing the organic portion of the solids and dewatering the grit.