Stainless steel cold rolling acid wastewater treatment device

• Main Author: WEN YUYOU
• Format: Patent
• Language: English
• Published: 25.03.2015
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

A stainless steel cold rolling acid wastewater treatment device comprises a wastewater storage tank, an oil removal tank, a chromium removal tank, a first neutralization tank, a second neutralization tank, a flocculation tank, a sedimentation tank, a concentration tank, a sludge storage tank, a filter-press tank, a reflux tank, a third neutralization tank and a filter tank, wherein the first neutralization tank is provided with an aerating device and a chemical adding device, which are used for filling air and adding alkaline substances respectively. The electroplating wastewater treatment device provided by the utility model can remove oil and various heavy metal ions, fluorine ions and sulfate ions at the same time, and effectively treats the stainless steel cold rolling acid wastewater produced in the present stainless steel production process; since the water content of treated bottom mud is lower, the bottom mud can be directly recycled after being dried naturally, thus reducing secondary environmental pollution and improving the resource recycling. Meanwhile, the wastewater is treated by aeration and neutralization, so that the cost can be saved.