Room 308, Building A, Jiahua Mansion, No.9, Shangdi No.3 Street,
Haidian District, Beijing, China
"Shortage, Large Consumption, Zero Liquid Discharge Requirement" decides "water" to be one of the restrictive factors of Coal-to-Chemical Industry. Hanqi company has comprehensive problem-solving ability to provide technical services that match customers' requirments.
Coal Gasification Water Treatment
1, Oil and Turbidity Removal
V-Flow® Circular Oil Separation Tank
Different from traditional API type, V-Flow adopts the mode of central water inlet and upward flow, which makes an uniform distribution and efficient separation. A scraper is used to clean up sludge down to bottom and dross up to surface. Oil Content: inlet<800mg/l, outlet<100mg/l.
Two-stage Oil Removal
According to different coal types, the gasified washing water contains high content of fluoride element sometime, we can remove it by dosing lime and DeF® into Turboflow®F Charifier.
Expansion and Reconstruction
BFR® Moving Bed Biofilm Reactor
BFRis a kind of modified MBBR, which is usually designed for reconstruction of biological system. We can expand the wastewater capacity without changing the original tank capacity, and upgrade the index including COD, NH3-N, TN and TP to a higher standard.
Tri-Clean® Process (COD Removal）
Biofix® NDN Biofilter(TN Removal)
Biofix®NDN is a technology combined two types fixed bed biofilter with different media specific gravity. Irregular sintered filter materials with specific gravity greater than 1 is used for carbonation and denitrification biofilter, it is designed with air-water combined backwash; medias with specific gravity less than 1 is used in nitrification biofilter, with gravity washing, and simple pipeline design. Different biofilters adapt to different biochemical processes, we can realize the maximum optimization of investment and operaten cost.
Pretreatment of ZLD System
Turboflow® Clarifier(Hardness and Silicon Removal)
Turboflow® works by reacting with hardness and silicon in water by adding magnesium agent and lime,and removes it by forming coprecipitation
Hardoff® Two-stage Process(Hardness Removal)
Hardoff® adopts two-stage hardness removal technology, the first stage is Booster® softened clarifier, which can remove most of the hardness, and the second stage uses Turboflow®H Clarifier as the hardness precision processing unit.