- Product Overview
- Comments
- Project Case
I. Product Overview
The “continuous sand filter”, which is a hi-tech integrated water treatment filter, is independently developed by our company based on advanced European and
American technologies and is well-known all around the world. It is a substitute for traditional fixed bed filter system
and can be applied to water supply treatment, wastewater treatment, and in-depth/recycling treatment of wastewater.
This product is based on up-flow floating bed filter principle and uses single homogeneous filter material, and is
able to filter and wash sand simultaneously. The ingenious sand lifting and washing structure takes the place of
traditional high-power backwashing system, needing minimum energy consumption. The product is easy to manage,
and the user doesn’t need to maintain or watch over it. The filter is a high-efficient energy-saving water treatment device. It can finish mixing, condensation, filtering and backwashing, continuous filtering and
backwashing processes, and backwashing pump and backwashing water tank are not needed. The filter material of
the filter is zeolite with a grain size of 0.5~1.5 mm and a porosity ratio of 20%-30%. Natural zeolite will not increase
the concentration of harmful metal irons in water, and can greatly improve such functions of the filtering unit as
removing suspended substance, nitrogen (nitrification/denitrification), phosphor, BOD/COD, etc.
II. Technical Features
Continuous contact filter is used for municipal wastewater treatment and industrial water treatment. Whether you
need water recycling or not, U&D series filters can be applied to new process methods to deal with nutrient removal,
industrial water treatment or untreated water, so as to ensure good water quality and to meet the requirement of
environmental standard. It can eliminate suspended substance, nitrogen (nitrification/denitrification functions),
phosphor and BOD/COD, and perform two-stage continuous contact filtering, activated carbon cleaning, treatment
of wastewater containing metals, and pretreatment in other procedures.
Improvement of water treatment procedure
• No original filtrate: clean and high-quality water treated
• Wash water treatment system: no impact load
• High suspended solids, and pretreatment is not needed.
• Low water head loss
• Low energy consumption
• Low cost of monitoring and maintenance
• Continuous backwashing and filtering, without intermittence
• Small floor space
Simplified filtering system
• No backwashing pump
• No backwashing impounding reservoir
• No backwashing water collecting tank
• No backwashing automation system
• No air cleaning fan
• No nozzle at the bottom of the filter, and stopper is not needed.
• Single medium filter material
• Easy and convenient to install and maintain
• Easy biological treatment transformation