APPARATUS FOR SEWAGE TREATMENT COMBINED WITH DECANTER FOR MIXING CHEMICALS AND GRANULE SLUDGE SELECTING UNIT

• Main Authors: MUN, JUNG SOO, LEE, JUN SEO, CHO, EUN HA, YE, HYOUNG YOUNG, CHOI, HAN NA, KIM, HAN YONG, RYU, JAE HUN, LEE, JOO HO, AHN, DAE HEE
• Format: Patent
• Language: English; Korean
• Published: 21.06.2016
• 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; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The present invention relates to a sewage treatment apparatus combined with a chemicals mixing type decanter and an aerobic granular sludge selecting device. The sewage treatment apparatus comprises: a chemicals mixing type decanter equipped in a biological treatment reactor; and a device for selecting aerobic granular sludge included in a biological treatment reaction solution. The chemicals mixing type decanter includes: a treated water discharging means of discharging treated water inside a biological treatment reactor to the outside; and a chemical injecting means connected to the treated water discharging means, and injecting chemicals for chemically treating treated water while treated water is discharged through the treated water discharging means. The aerobic granular sludge selecting device includes: a reaction solution discharging means of discharging a reaction solution inside a biological treatment reactor; a filtering means linked to the reaction solution discharging means to separate fine sludge whose particle is smaller than aerobic granular sludge from the aerobic granular sludge included in a reaction solution by filtering a reaction solution discharged by the reaction solution discharging means; and a return means linking the filtering means to the biological treatment reactor to allow the aerobic granular sludge separated by the filtering means to return inside the biological treatment reactor. 본 발명은 약품 혼합식 디켄터와 호기성 그래뉼 슬러지 선별장치가 결합된 하수처리장치에 관한 것으로, 생물학적 처리반응조 내에 구비된 약품 혼합식 디켄터; 및 생물학적 처리반응액에 포함된 호기성 그래뉼 슬러지 선별장치를 포함하되, 상기 약품 혼합식 디켄터는, 생물학적 처리반응조 내의 상징수를 외부로 배출하는 상징수 배출수단; 및 상기 상징수 배출수단에 연결되어, 상기 상징수 배출수단을 통해 상징수가 배출되는 과정에서 상징수에 화학처리를 위한 화학약품을 주입하는 약품주입수단이 구비되고, 상기 호기성 그래뉼 슬러지 선별장치는, 생물학적 처리반응조 내의 반응액을 배출하는 반응액 배출수단; 상기 반응액 배출수단과 연계되어, 상기 반응액 배출수단에 의해 배출된 반응액을 필터링하여 반응액에 포함된 호기성 그래뉼 슬러지와 상기 호기성 그래뉼 슬러지보다 입자가 작은 미세슬러지를 분리하는 필터링수단; 및 상기 필터링수단과 생물학적 처리반응조를 연계하여, 상기 필터링수단에 의해 분리된 상기 호기성 그래뉼 슬러지를 상기 생물학적 처리반응조 내에 리턴시키는 리턴수단을 포함하는 약품 혼합식 디켄터와 호기성 그래뉼 슬러지 선별장치가 결합된 하수처리장치에 관한 것이다.