Shenzhen Chuangshengyuan Environmental Protection Technology Co., Ltd. Address: Shansha Industrial Zone, Pinghu Town, Longgang District, Shenzhen, Guangdong, China Contact: Wu Peng Fax Iron Oxide Pigment Production Wastewater Treatment - Wastewater Introduction: The main production processes of iron oxide pigments are iron and nitric acid. The sulfuric acid reaction, after a series of reactions and treatments, finally obtains pigments such as iron oxide red, iron oxide yellow, iron oxide black, etc., during the reaction of iron and nitric acid, a large amount of NH4+ is formed, so that the concentration of ammonia nitrogen in the production wastewater is very high, and the pH of the wastewater Very low, Fe2+ and Fe3+ are very high in content and can cause serious pollution if discharged into water bodies.
Iron oxide pigment wastewater treatment product features:
The high-concentration ammonia-nitrogen wastewater treatment system developed by our company adopts high-efficiency stripping system. The system gas-liquid ratio is controlled at about 5500, the pH is controlled at about 11.5, and the wastewater with ammonia nitrogen concentration is as high as 2000-4000 mg/L at water temperature greater than 25 °C. The removal rate can reach more than 90%.
The high-concentration ammonia nitrogen wastewater treatment system is equipped with a control system consisting of a pH control meter, a flow sensor, a liquid level control meter, a solenoid valve, a control cabinet, etc. The above control conditions are displayed in digital form on the display interface, so that the management personnel can see at a glance and have Fault alarm for easy management and maintenance. The automatic control system can be designed manually, semi-automatically and fully automatically according to user requirements.
Characteristics of iron oxide pigment wastewater treatment process:
1. Through the combined process, the wastewater with different concentrations is treated, the ammonia nitrogen removal rate is high, and the national first-class emission standard is less than or equal to 15 mg/L after treatment.
2. The designed water quantity ranges from several tons/hour to five or six hundred tons/hour. The designed treatment concentration can be as high as 4000mg/L, and the water discharge reaches the national first-class discharge standard.
3. The equipment is made of FRP material, carbon steel anti-corrosion and stainless steel material, which solves the problem of short life caused by sewage corrosion of traditional equipment.
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