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Disinfection treatment method for deep denitrification and dephosphorization of urban sewage

A technology for deep denitrification and urban sewage, applied in biological water/sewage treatment, water/sludge/sewage treatment, special treatment targets, etc., can solve the problem that aerobic bacteria cannot fully exert their activity, reduce the effect of sewage treatment Low oxygen dissolution rate and other problems, to improve the effect of sewage treatment, increase the residence time, and improve the effect of dissolved oxygen

Active Publication Date: 2022-05-17
内蒙古丝绸之路建设工程有限公司
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Problems solved by technology

[0004] However, in the current biological nitrogen and phosphorus removal treatment, when the aerobic tank is aerated, the bubbles formed by oxygen stay in the water for a short time, and the number of bubbles formed is also small, resulting in a low oxygen dissolution rate in the water. Bacteria cannot fully exert their activity and affect the progress of biological reactions, thereby reducing the effect of sewage treatment

Method used

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  • Disinfection treatment method for deep denitrification and dephosphorization of urban sewage
  • Disinfection treatment method for deep denitrification and dephosphorization of urban sewage
  • Disinfection treatment method for deep denitrification and dephosphorization of urban sewage

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Embodiment 1

[0045] see Figure 1-6 , a disinfection treatment method for deep denitrification and dephosphorization of urban sewage, including a box body 1, please refer to figure 1 The tank 1 is divided into an ammonification tank 101, a nitrification tank 102, and a denitrification tank 103. The inner wall of the lower end of the nitrification tank 102 is in the shape of an inverted bucket to facilitate the discharge of sludge, and an infusion pipe 2 is connected between the two adjacent tanks. , the upper part of the ammonification tank 101 is connected with a liquid inlet pipe 3, and the liquid inlet pipe 3 is arranged obliquely, so that the sewage can wash down the bacterial colony. 4. The feeding pipe 4 located in the ammoniation tank 101 is in communication with the liquid inlet pipe 3, and the upper inner walls of the nitrification tank 102 and the denitrification tank 103 are fixedly connected with a scour box 5, and the lower inner walls of the two scour tanks 5 are all inclined...

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Abstract

The invention discloses a disinfection treatment method for deep denitrification and phosphorus removal of urban sewage, which belongs to the field of sewage treatment. pool and denitrification pool, and there is an infusion pipe connected between two adjacent pools, the upper part of the ammonification pool is connected with a liquid inlet pipe, and the upper ends of the ammonification pool, nitrification pool and denitrification pool are all connected with feeding pipes, which can realize The residence time of oxygen bubbles in water can increase the dissolution rate of oxygen in water and the activity of biological bacteria, thereby improving the efficiency of biological reactions and the effect of sewage treatment. The attachment rods imitating the shape of cactus are used to provide attachment points for bubbles to increase The residence time of the bubbles in the water, and the attachment rod is set close to the position where the bubbles are generated to prevent the bubbles from floating up immediately. In addition, the opening and closing of the plastic cover is like a fish spitting out water bubbles, which can increase the volume of the bubbles and further improve the dissolution in water oxygen.

Description

technical field [0001] The invention relates to the field of sewage treatment, more specifically, to a disinfection treatment method for deep denitrification and phosphorus removal of urban sewage. Background technique [0002] Since the 1960s, foreign countries have systematically carried out research on physical treatment methods for nitrogen and phosphorus removal. The results show that the disadvantages of physical methods are large consumption of chemicals, large amounts of sludge, and high operating costs. Therefore, urban sewage treatment plants are generally not recommended. Since the 1970s, foreign countries have begun to study and gradually adopt activated sludge biological nitrogen and phosphorus removal. my country began to study biological nitrogen and phosphorus removal technology in the 1980s, and gradually realized the industrialization process in the late 1980s. [0003] The basic principle of biological denitrification of wastewater is to convert organic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F3/34C02F101/10C02F101/38
CPCC02F3/302C02F3/34C02F2303/04C02F2101/38C02F2101/105C02F2203/006Y02W10/10
Inventor 潘齐辉
Owner 内蒙古丝绸之路建设工程有限公司
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