Magnetic active carbon aerobic granular sludge membrane bioreactor and preparation method thereof

• Main Authors: LI SHUXIN, LI FENGLANG
• Format: Patent
• Language: Chinese; English
• Published: 15.02.2017
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention provides a magnetic active carbon aerobic granular sludge membrane bioreactor and a preparation method thereof. The preparation method comprises the following steps: firstly modifying active carbon power through nitric acid, mixing the modified active carbon power with ferric nitrate solution, and carrying out high-temperature calcination on the mixture to obtain magnetic active carbon powder; then adding the magnetic active carbon powder into flocculent active sludge powder, uniformly mixing, soaking a vinylidene chloride hollow fiber membrane; running two cycles in one day under the aeration rate of 0.6L/min, wherein the aeration time of one cycle is 8 h; feeding water for 5 min, draining water for 5 min, precipitating for 5 min, standing at other time, and running for 18 days, and discharging sludge to obtain the magnetic active carbon aerobic granular sludge membrane bioreactor. The magnetic active carbon aerobic granular sludge membrane bioreactor prepared through the preparation method pro