I. The upflow sedimentation tank is a commonly used piece of equipment for solid-liquid separation in wastewater treatment. It utilizes the gravitational settling action to remove suspended particles with a density greater than water from the liquid. It is one of the widely applied treatment units in wastewater treatment, primarily achieving solid-liquid separation by controlling the upward flow speed of sewage to be less than the natural settling velocity of the sludge, and can be used for the primary treatment of sewage.
II. Working principle of the upflow sedimentation tank: In the upflow sedimentation tank, water enters the tank from the top downward through the inlet pipe located in the pool. An umbrella-shaped baffle is set below the pipe to evenly distribute the wastewater in the pool, which then slowly rises along the entire water-crossing section. Suspended solids settle into the conical sediment hopper at the bottom of the pool, while clarified water flows out along the peripheral overflow weir around the pool. A baffle and scum trough are set in front of the weir to intercept floating scum and ensure the quality of the effluent. A sludge pipe is set on one side of the pool against the wall, and sludge is periodically discharged by static water pressure.
III. Equipment composition and the role of each component: The sedimentation tank consists of five parts: the inlet area, sedimentation area, buffer area, sludge area, and outlet area. The role of the inlet and outlet areas is to ensure that water flows evenly through the sedimentation tank, avoiding short-circuiting and reducing the adverse effects of turbulence on sedimentation, while also reducing dead water areas and improving the volume utilization rate of the sedimentation tank. The sedimentation area, also known as the clarification area, is the working area of the sedimentation tank, where sedimentable particles are separated from the sewage. The sludge area is the region for sludge storage, concentration, and discharge. The buffer area is the water layer region separating the sedimentation area and the sludge area, ensuring that particles that have already settled do not float up again due to water disturbance.
For twenty-one years, Shanghai Dazhang have been dedicated to the field of filter presses and solid-liquid separation industries. As the main drafters of the industry standards for filter presses and filter plates, our products rank in the top three in terms of production and sales volume in China. Our manufacturing facilities cover an area of over 570,000 square meters, and we employ more than 1,000 staff members.
We are a smart manufacturer and comprehensive service provider of filter presses and sludge dewatering equip-ment.
The company currently has three production bases, eight domestic offices, two international offices, two overseas subsidiaries, and one Sino-German joint venture for high-end filter plate manufacturing. We hold three invention pat-ents and over 100 utility model patents.
We have obtained numerous certifications and honors, including ISO 9001 Quality Management System certification,ISO 14001 Environmental Management System certification, ISO 18001 Occupational Health and Safety Manage-ment System certification, the EU's CE certification, and insurance coverage from PICC, the People's Insurance Company of China.
We strive to offer users beter experiences and more cost-effective and efficient design solutions!
Q1. Are you a manufacturer or a trader?
We're an experienced manufacturer located in Shanghai.
Q2. How about the production capacity of your company?
Our factory covers area over 570,000m
2 and produces machines 9500 sets per year.
Q3. How long is the delivery time for bulk order?
Normally 15-30 working days after deposit. But when the equipment is big and the customers have spe-cial requirement on the equipment, the delivery could be extended.
Q4. What are the payment terms?
Normally by T/T. Deposit first before the production after order is confirmed, and then balance payment after inspection.
Q5. How long is the product warranty period?
One year for normal use, and lifelong on-line service. Wearing parts and problem coursed by worker's wrong operation are not included.
Q6. What's the after sale service of your company?
We will provide foundation drawing to the clients for installation. Besides, we will provide installation video and online guidance. If client need our workers to the site, can be agreed according to your needs.
Q7. Can your company provide wearing parts?
We can produce wearing parts for our clients. If your equipment are not manufactured by our company,please provide us the wearing parts drawing.
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