INTEGRATED DEVICE FOR TREATMENT OF LOW CARBON/NITROGEN RATIO WASTE WATER AND OPERATION METHOD THEREOF

• Main Authors: ZHANG XU XIANG, REN HONG QIANG, HUANG HUI, GENG JIN JU, PENG CHONG
• Format: Patent
• Language: English; Japanese
• Published: 26.12.2019
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

To provide a device and an operation method thereof, wherein short time nitrification and heterotrophy-sulfur autotrophic denitrification process are combined, total nitrogen removal effect on a low carbon/nitrogen ratio waste water is high, and energy consumption and site areas are effectively reduced.SOLUTION: The invention discloses an integrated device for treatment of a low carbon/nitrogen ratio waste water and an operation method thereof, wherein the device includes a water inflow pool 1, a short time nitrification biofilter 13, a heterotrophy-sulfur autotrophic denitration biofilter 14, a drainage pool 11, a water entry pump 7, an air pump and an aerator 5, a drainage pool-return pump 8, a back wash pump 12, a PLC controller 16 and a relating control valve; wherein backwash treatment is conducted by addition of a filler, a sludge inoculation treatment, a short time nitrification treatment, and a denitrification process of nitrite nitrogen. Without the need for addition of an extra organic carbon source, treatment effect of a low carbon/nitrogen ratio waste water is improved, and also energy consumption of the system is reduced effectively.SELECTED DRAWING: Figure 1 【課題】短時間硝化と従属栄養−硫黄独立栄養脱窒プロセスを組み合わせ、低炭素対窒素比廃水に対して総窒素除去効果が高く、エネルギー消費および敷地面積を効果的に低減させることを課題とする。【解決手段】本発明は、低炭素対窒素比廃水を処理する一体化装置およびその動作方法を開示し、前記装置は、入水プール１、短時間硝化バイオフィルター１３、従属栄養−硫黄独立栄養脱窒バイオフィルター１４、排水プール１１、入水ポンプ７、エアーポンプと曝気装置５、排水プール兼リターンポンプ８、逆洗ポンプ１２、ＰＬＣコントローラ１６および関連制御バルブを含み、充填剤の添加、汚泥接種処理、短時間硝化処理、亜硝酸態窒素の脱窒プロセスにより、逆洗処理を行う。追加の有機炭素源を添加する必要はなく、低炭素対窒素比廃水の処理効果を向上させ、かつシステムのエネルギー消費を効果的に低減させる。【選択図】図１