Oil Removal Technology
ORZ Deep Oil Removal Technology is mainly used for the deep removal of various refractory oils, COD and TOC in oily feed liquids of hydrometallurgical extraction systems such as P204, P507, C272 and BC196, as well as oily and phenolic organic wastewater, and it can achieve precise removal of dissolved oils. This oil removal technology is independently developed by our company.
The oil removal technology applies to feed liquids and wastewater with an initial oil content ≤ 150 mg/L, delivering treated effluent with oil content ≤ 1 mg/L. For streams with higher oil concentrations, pre-treatment is required prior to the deep oil removal process.
Technical Principle
Under the catalytic activation of activator, pollutants in water are removed via multiple mechanisms including activated adsorption, catalytic precipitation, physical adsorption and chemical adsorption. When saturated, the adsorbent peels off gradually and is discharged, and the active groups on its inner surface start to adsorb heavy metals. With continuous activation, the adsorbent undergoes successive adsorption and peeling, realizing continuous treatment of heavy metal wastewater.
Core Advantages
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It is applicable to a wide range of heavy metal types and concentrations, with remarkable performance in advanced heavy metal treatment.
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It features high operational flexibility. Process parameters can be adjusted according to effluent requirements, and pre-treatment or multi-stage adsorption can be added as needed.
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The process is simple and easy to operate, with small footprint and stable long-term operation.
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The adsorbent boasts large adsorption capacity, low sludge output, low operating cost and strong anti-pollution capability.
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After adsorption treatment, heavy metal contents in effluent comply with national integrated wastewater discharge standard, surface water environmental quality standard, local standards and industrial standards.
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Core Materials
Application Scenarios
Treatment of high-concentration ammonia nitrogen wastewater (1~70 g/L) from industries including ternary precursors for lithium batteries, non-ferrous metallurgy (nickel-cobalt, tungsten-molybdenum, vanadium, zirconium, niobium-tantalum), new materials, rare earths, catalysts, coal chemical industry, chemical fertilizers and waste lithium battery recycling. It also supports energy-saving renovation of traditional ammonia distillation systems.
Project Application
Quzhou Huayou Cobalt New Material Co., Ltd. – High-Purity Nickel Sulfate Project (Phase II)
Treatment capacity: 4320 t/d.
Deep oil removal system for nickel sulfate, manganese sulfate and cobalt sulfate feed liquid.
Commissioning time: 2023.
Influent: Oil content ≤ 50 mg/L.
Treated effluent: Oil content ≤ 3 mg/L.
Annual cost savings on ammonia water procurement: RMB 99.69 million.