Automatic Dosing Systems video collection

Dissolved air flotation is a solid-liquid separator that many bubbles in contact with the solids, making their density lower than the water, and then they will float up to the surface so that suspended solids of water, including oil&grease without dissolving in water, can be reduced. DAF can be used in pretreatment, water reuse, deep treatment, phosphorus removal from tail water, etc. which is the critical equipment to reduce the SS, COD, BOD, total phosphorus, etc.

Unlike the ordinary clarifier, the Lamella clarifier improves the settling area using its unique water distribution method and plate structure. No matter the surface loading or the service life, both are several times that of ordinary clarifiers. Lamella clarifier has occupied a place in the solid-liquid classification section of sewage treatment with its excellent performance and is chosen by several users instead of ordinary clarifiers because of its high efficiency and compact structure.

The shallow air flotation is cylindrical in shape, compact in structure, and shallow in the pool. The main body of the device consists of five parts: pool body, rotating water distribution mechanism, dissolved air release mechanism, frame mechanism, water collection mechanism, etc. The water inlet, water outlet, and scum discharge outlet are all concentrated in the central area of the pool body. The water distribution mechanism, water collection mechanism, and dissolved air release mechanism are all closely connected with the frame and rotate around the center of the pool body. This device provides a complete set of equipment assembly and control systems. The equipment can achieve optimal operating status through the combination of centralized control and decentralized control. Shallow air flotation is one of the critical items in the water supply treatment process, solid-liquid separation technology, and equipment. Shallow air flotation is one of the most effective methods for removing tiny suspended particles whose specific gravity is close to that of water.

The dissolved air flotation system of the mud hopper can play a transitional role, allowing the sludge to be discharged in a centralized manner while adding chemicals to the wastewater to purify the water quality further. When treating sewage containing a large amount of sediment, the mud hopper can also effectively prevent the repeated precipitation of suspended matter.

A screw sludge dewatering machine, originating from the advanced technology of foreign countries, is introduced into China to realize localization. The automatic renewal filtration technology is cleverly
used in the sludge dewatering machine to replace the traditional filter screen filtration. The self-renewal filtration technology ensures that the the dewatering machine can stably separate sludge from sewage water. It is a new solid-liquid separation equipment to extrude and dehydrate the sludge through the strong extrusion pressure caused by the change of screw diameter and pitch, as well as the small gap between the floating ring and the fixed ring.

The center drive sludge scraper is supporting equipment for the radial sedimentation clarifier. water inflows into the clarifier from the middle part, and the sludge sinks to the bottom of the tank. Clean water flows out, and the bottom sludge is scarpered to the pit and finally discharged. The central drive scraper also has the function of blocking and scraping the scum on the surface of the tank, which is optional.

The automatic Polymer preparation unit is an important dosing machine in wastewater treatment. There are different kinds of dosing machines which are chosen according to the nature of the agent, dosage, client's requirements, and budget. In terms of materials, carbon steel, stainless steel, PE, PP, U-PVC, and other materials are also available.

The vortex air flotation system is a wastewater treatment technology used to remove grease, colloids, and suspended solids in sewage (especially petrochemical oily sewage).