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Substation/converter station domestic sewage treatment system and treatment method

A domestic sewage and treatment system technology, applied in the domestic sewage treatment system and treatment field, can solve the problems of special maintenance, difficult survival of biological bacteria, unstable operation, etc., and achieve timely response, strong controllability, and remote monitoring Effect

Pending Publication Date: 2021-11-12
BEIJING GUODIAN FUTONG SCI & TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The purpose of the invention is to provide an intelligent, high Stable, maintenance-free, ready-to-use and adjustable green low-carbon domestic sewage treatment system, especially suitable for domestic sewage treatment application scenarios of substations / converter stations; another purpose of the present invention is to provide a synchronous removal of COD , ammonia nitrogen, and dehardening substation / converter station domestic sewage treatment methods

Method used

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  • Substation/converter station domestic sewage treatment system and treatment method

Examples

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Effect test

Embodiment 1

[0026] The waste water treated in this embodiment is substation domestic sewage, and the pollutant indicators are: COD 250 mg / L, ammonia nitrogen 80 mg / L, and hardness 50 mg / L. The sewage treatment steps are as follows:

[0027] (1) Domestic sewage enters the regulating tank and mixes in the regulating tank to balance the water quality and quantity;

[0028] (2) Through the first parallel pump, it enters the self-cleaning filter in the first stage of the pretreatment unit and the security filter in the second stage of the pretreatment unit in turn. An automatic detection probe is installed on the pipeline of the pretreatment unit to detect the COD of the water , ammonia nitrogen, conductivity; the pretreatment stage intercepts suspended solids, oil and other substances to ensure that suspended solids are lower than 50mg / L and oil is lower than 20mg / L;

[0029] (3) On-line pressure gauges are installed on the water inlet pipe of the first stage of the pretreatment unit and the o...

Embodiment 2

[0036] The same treatment system as in Example 1 was adopted, and the treated wastewater was domestic sewage from the converter station. The pollutant indicators were: COD 250 mg / L, ammonia nitrogen 80 mg / L, and hardness 300 mg / L. The sewage treatment steps are as follows:

[0037] (1) Domestic sewage enters the regulating tank and mixes in the regulating tank to balance the water quality and quantity;

[0038] (2) Through the first parallel pump, it enters the self-cleaning filter in the first stage of the pretreatment unit and the security filter in the second stage of the pretreatment unit in turn. An automatic detection probe is installed on the pipeline of the pretreatment unit to detect the COD of the water , ammonia nitrogen, conductivity; the pretreatment stage intercepts suspended solids, oil and other substances to ensure that suspended solids are lower than 50mg / L and oil is lower than 20mg / L;

[0039] (3) The inlet pipe of the first stage 3 of the pretreatment uni...

Embodiment 3

[0045] The system used in Example 1 and the water quality treated are all the same, except that titanium cathodes and DSA anodes are used in step (4), the electrode spacing is 10mm, and the current density is 500A / m 2 , The reaction time is 6min. The composite accelerator is sodium chloride, hydrogen peroxide sodium hypochlorite. The sewage treatment effect at this stage is: the pollutants COD and ammonia nitrogen in the wastewater are oxidized and removed, the removal rate of COD is ≥ 80%, and the removal rate of ammonia nitrogen is ≥ 98.5%; the others are the same as in Example 1. The final produced water meets the Grade A standard of GB18918-2002 Pollutant Discharge Standards for Urban Sewage Treatment Plants.

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Abstract

The invention discloses a transformer substation / converter station domestic sewage treatment system and method, and the transformer substation / converter station domestic sewage treatment system comprises an adjusting tank, a pretreatment unit connected with the adjusting tank, an electrocatalytic oxidation unit connected with the pretreatment unit, and a composite efficiency improving unit and a clean water tank which are connected with the electrocatalytic oxidation unit, a descaling unit installed in the electrocatalytic oxidation unit, and an intelligent control unit connected with the pretreatment unit, the electrocatalytic oxidation unit and the composite efficiency improving unit; and the composite efficiency improving unit is connected with the clean water tank. The system is suitable for domestic sewage treatment application scenes of transformer substations / converter stations, is high in stability, can be used instantly after being started, has adjustability along with water quantity and water quality, is simple to debug, does not have links such as a long microorganism culture and domestication period, does not generate secondary pollutants such as sludge, does not add chemicals, also has a bactericidal effect, and has stable and standard effluent quality.

Description

technical field [0001] The invention relates to a domestic sewage treatment system and treatment method, in particular to a substation / converter station domestic sewage treatment system and treatment method. Background technique [0002] At present, domestic sewage treatment facilities in substations / converter stations can be divided into septic tanks, powered underground sewage treatment devices, powered ecological sewage treatment devices, non-powered buried sewage treatment devices, and non-powered ecological sewage treatment facilities. 5 types. Septic tank treatment process and buried sewage treatment process are the main sewage treatment methods currently used. However, the treatment efficiency of septic tanks in the early stage of domestic sewage was low, and the water discharge effect was difficult to guarantee. Among the new stations, only unattended substations continued the design of septic tanks. With the change of the operation and maintenance mode in the late...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06
CPCC02F9/00C02F5/00C02F1/4674C02F7/00C02F1/725C02F1/722C02F2201/46175C02F2001/46152C02F2001/46133C02F2301/043C02F2209/003C02F2209/08C02F2209/14C02F2001/46123C02F2209/055C02F2303/22C02F2303/20C02F2209/001
Inventor 滕济林刘谡飞田颖李若征王娟王灿赵崇李郑坤朱霞刘晓宇
Owner BEIJING GUODIAN FUTONG SCI & TECH DEV
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