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Oilfield sewage treatment technology and equipment
Oilfield sewage treatment oil removal section + filtration section technology upgrade, provide process package.
High oil content, high suspended matter, sulfur and iron containing sewage: IF purifier + in vitro scrub filtration process package
High oil content, heavy oil: CFU swirling air float +AFM filtration process package
Conventional sewage: Gravity sedimentation/axial swirl oil removal +AFM filtration package
Oil removal section of oilfield sewage treatment technology upgrade
Oil Removal Section - Vertical Multi-function Purifier (IF)
Technical principle
a) It can realize the three-phase separation of oil, mud and sand and water at the same time, and set up automatic sewage and oil collection systems, which are complete and reliable;
b) Pressure closed operation, reduce VOCS emissions, environmental protection and energy saving;
c) Vertical skid-mounted equipment, short residence time (only 30min), small footprint.
d) Good on-site adaptability. It can operate reliably under different hydraulic loads and changes in oil properties.
e) Automatic control, stable operation, safe and reliable.
Technical principle
CDF is a combination of centrifugal separation technology and dissolved air floatation separation technology,
which can effectively separate the wastewater containing oil and suspended matter.
Oil Removal Section - Compact Air Float (CFU)
a) High oil removal efficiency (single-stage >90%), small particle removal (minimum particle removal size ¡Ü2um)
b) Skid-mounted equipment? It has a short residence time (only 1~5min), a small footprint (only 10% ~20% of the traditional dissolved air float), small size and light weight.
c) Strong stability. There is no filter screen, bonding plate and other internal parts, there is no dependence on the structure, not easy to jam, etc., to ensure the stability of the treatment effect.
d) robustness. It can adapt to different hydraulic loads, oil viscosity and oil specific gravity changes.
e) Less moving parts, strong reliability, fast installation, low operation, use and maintenance costs.
f) Automatic control, stable operation, safe and reliable.
Oil Removal Section - Axial Swirl Oil Remover (HC)
Axial swirl degreaser
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Oilfield sewage treatment and filtration section technology upgrade
There are three kinds of filtration mechanism of active filter material
1. Mechanical filtration (physical interception). The pore of filter material is used to filter the particles above 40um
2. Electro-mechanical filtration (electroadsorption and physical pore adsorption). 40um to 4um particles were adsorbed by electroadsorption and pore
3. Selective molecular sieve and catalysis (intermolecular chemisorption). Molecular sieve adsorbs below 4um levels and dissolves chemicals, removing heavy metals.
General filter material only exists: physical interception and physical pore adsorption
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High filtration accuracy
Easy backwash, short time
Long service life
The water intake indicator is double 100
Using active filter material to filter the water quality can reach the grade II index of oilfield injection water quality.
Other existing filter materials must be filtered in two stages to achieve the level II water quality index,
That is, the oil content of the effluent is ¡Ü6mg/L, the suspended matter of the effluent is ¡Ü2mg/L, and the particle size is ¡Ü1.5¦Ìm.
Technical
characteristics
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AFM active filter material filter
AFM active filter material was used to optimize the filter material
Introduction of active filter media
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AFM active filter material was used to optimize the filter material
Technical and economic performance
1) The external scrub filter backwash strength is large, the inner wall anti-corrosion requirements are high, and the pipe manifold is made of stainless steel, so that the cost of a single device is more than 20% higher than that of the general filter. The one-time investment in equipment is relatively high.
2) The failure rate of external scrubbing filter equipment is low, and the daily operating cost is low. The filter material cleaning effect is good, the filter material replacement cycle is doubled, the filter material replacement times are saved, the pollution filter material hazardous waste amount and disposal costs are reduced, and the environmental economic benefits are obvious.
3) In the case of the same water quality treatment accuracy, the equipment filter speed is large, and the unit water treatment and ton water production cost is low. In addition, the amount of backwashing pollution is only 1/3 of that of other filters, and the water production rate of the equipment is about 30% higher than that of other filtration equipment. Therefore, the use cost is more economical than that of media filters, saving about 30%.
