CN-121974516-A - Rural distributed chemical-free integrated electrochemical drinking water treatment system

CN121974516ACN 121974516 ACN121974516 ACN 121974516ACN-121974516-A

Abstract

The invention discloses a rural distributed chemical-free integrated electrochemical drinking water treatment system, which belongs to the technical field of water treatment and comprises an electrochemical electrolysis module, a catalytic oxidation filtering module, a self-cleaning regeneration module, an intelligent regulation module and a dynamic regulation module, wherein the electrochemical electrolysis module is used for applying pulse asymmetric voltage to inflow water to generate electrolytic mixed water, the catalytic oxidation filtering module is used for guiding the electrolytic mixed water to enter a filtering bed to generate deep purified water, the self-cleaning regeneration module is used for monitoring water flow resistance parameters flowing through the filtering bed, generating self-cleaning trigger signals when the trigger threshold is exceeded, switching the working mode of the filtering bed, performing gas scrubbing on the filtering bed by utilizing the electrolytic mixed water to generate regenerated filtering bed, and the intelligent regulation module is used for collecting real-time water quality monitoring data of the deep purified water to generate regulation instructions and dynamically regulating pulse voltage control signals and trigger threshold. The invention realizes rural medicament-free integrated drinking water treatment through intelligent electrochemical electrolysis, catalytic oxidation filtration, self-cleaning regeneration and intelligent regulation and control functions.

Inventors

MA BING
LI JING
LI MIN
MA YUHAN
FENG CHANGSONG
WANG CHUNGANG
CHEN YUN

Assignees

重庆摩尔水处理设备有限公司

Dates

Publication Date: 20260505
Application Date: 20260204

Claims (9)

1. A rural distributed chemical-free integrated electrochemical drinking water treatment system is characterized by comprising an electrochemical electrolysis module, a catalytic oxidation filtration module, a self-cleaning regeneration module and an intelligent regulation and control module, wherein, The electrochemical electrolysis module is used for applying pulse asymmetric voltage driven by a pulse voltage control signal to inflow water to carry out electrolysis treatment to generate electrolysis mixed water body containing active substances and micro-nano bubbles; The catalytic oxidation filtering module is used for guiding the electrolytic mixed water body to enter a filtering bed layer filled with porous conductive catalytic particles for filtering and catalytic oxidation to generate a deep purified water body; the self-cleaning regeneration module is used for monitoring the water flow resistance parameter flowing through the filter bed, generating a self-cleaning trigger signal when the water flow resistance parameter exceeds a preset trigger threshold, switching the working mode of the filter bed to a self-cleaning regeneration mode by using the self-cleaning trigger signal, and scrubbing the filter bed by using micro-nano bubbles in the electrolytic mixed water body to generate a regenerated filter bed; The intelligent regulation and control module is used for collecting real-time water quality monitoring data of the deep purified water body, generating an adjusting instruction according to the real-time water quality monitoring data, and dynamically adjusting the pulse voltage control signal and the trigger threshold value by utilizing the adjusting instruction.
2. The rural distributed chemical-free integrated electrochemical drinking water treatment system according to claim 1, wherein the electrochemical electrolysis module comprises a water quality parameter acquisition unit, a signal control unit and a power driving unit, wherein, The water quality parameter acquisition unit is used for acquiring real-time water quality parameters of the inlet water; The signal control unit is connected with the data acquisition unit and is used for matching and generating pulse voltage control signals from a preset library with various voltage waveforms according to the real-time water quality parameters; The power driving unit is connected with the signal control unit and is used for supplying power to the electrolysis electrode according to the pulse voltage control signal, so that the inflow water reacts in the electrolysis cavity to generate an electrolysis mixed water body.
3. The rural distributed chemical-free integrated electrochemical drinking water treatment system according to claim 2, wherein the catalytic oxidation filtration module comprises a three-dimensional electrode catalytic oxidation unit, a membrane fine filtration unit and a transmembrane pressure difference monitoring and feedback unit, wherein, The three-dimensional electrode catalytic oxidation unit is connected with the power driving unit and is used for enabling the electrolytic mixed water body to pass through the filtering bed layer in a first flow direction, and the porous conductive catalytic particles are used as three-dimensional electrodes to continue oxidation reaction and intercept suspended matters so as to generate a primary purified water body; the membrane fine filtering unit is connected with the three-dimensional electrode catalytic oxidation unit and is used for enabling the primary purified water body to pass through a fine filtering membrane component to remove tiny particles and microorganisms in the water body and generate a deep purified water body; The transmembrane pressure difference monitoring and feedback unit is connected with the membrane fine filtering unit and is used for obtaining the pressure difference before and after flowing through the fine filtering membrane component, generating a membrane pollution state parameter and adjusting the flow speed of the first flow direction by utilizing the membrane pollution state parameter.
4. The rural distributed chemical-free integrated electrochemical drinking water treatment system according to claim 3, wherein the self-cleaning regeneration module comprises a parameter monitoring and triggering unit, a flow direction control unit, a gas scrubbing disturbance unit and an electrochemical regeneration unit, wherein, The parameter monitoring and triggering unit is connected with the transmembrane pressure difference monitoring and feedback unit and is used for monitoring the water flow resistance parameter flowing through the filter bed layer and generating a self-cleaning triggering signal when the water flow resistance parameter exceeds a preset triggering threshold value; The flow direction control unit is connected with the parameter monitoring and triggering unit and is used for responding to the self-cleaning triggering signal and switching a water inlet flow path to enable water to enter the filter bed layer in a second flow direction; The gas scrubbing and disturbing unit is connected with the flow direction control unit and is used for expanding and releasing micro-nano bubbles accumulated in the filter bed layer in the downward direction of the second flow to mechanically disturb the porous conductive catalytic particles; The electrochemical regeneration unit is connected with the gas scrubbing disturbance unit and is used for applying a cleaning voltage with alternating polarities to two ends of the filtering bed layer, and generating an electrochemical cleaning effect on the surfaces of the porous conductive catalytic particles to generate a regenerated filtering bed layer.
5. The rural distributed, medicament-free integrated electrochemical drinking water treatment system according to claim 4, wherein the applying the alternating polarity cleaning voltage comprises: when responding to the self-cleaning trigger signal, cutting off power supply to the main electrolytic electrode to generate an isolated bed circuit; connecting an independent cleaning voltage source to the isolated bed circuit to carry out integral energization on the porous conductive catalytic particles; And controlling the cleaning voltage source to output cleaning voltage with alternating polarity according to a preset voltage waveform for decomposing organic dirt.
6. The rural decentralized medicament-free integrated electrochemical drinking water treatment system according to claim 4, wherein the intelligent regulation and control module comprises a water quality monitoring data acquisition unit, a data comparison and deviation generation unit, a pulse voltage adjustment instruction generation unit and a trigger threshold correction instruction generation unit, The water quality monitoring data acquisition unit is respectively connected with the membrane fine filtering unit and the electrochemical regeneration unit and is used for acquiring real-time water quality monitoring data of the deeply purified water body; The data comparison and deviation generation unit is connected with the water quality monitoring data acquisition unit and is used for comparing the real-time water quality monitoring data with a preset target water quality range to generate a water quality deviation signal; the pulse voltage regulation command generation unit is connected with the data comparison and deviation generation unit and is used for generating a first regulation command for regulating the pulse frequency and amplitude in the pulse voltage control signal based on the water quality deviation signal; the trigger threshold correction instruction generating unit is connected with the pulse voltage adjustment instruction generating unit, counts the historical trigger frequency of the self-cleaning trigger signal, and generates a second adjustment instruction for correcting the trigger threshold by combining the change trend of the water flow resistance parameter.
7. A rural decentralized, medicament-free integrated electrochemical drinking water treatment system according to claim 1, wherein the system further comprises: Diverting a portion of the deeply purified water to produce a reflux stabilized water; monitoring pipe network water quality parameters of a final water outlet, and generating a proportional control signal according to the pipe network water quality parameters; And regulating the flow of the backflow stable water body returned to the water inlet end by using the proportion control signal, and forming a water quality buffer protection layer at the inlet of the pipe network.
8. The rural distributed, medicament-free integrated electrochemical drinking water treatment system according to claim 1, wherein the pulsed asymmetric voltage further comprises: Acquiring real-time power generation power and acquiring real-time processing load of each power utilization unit of the system; Dynamically distributing the real-time power according to a preset load priority list for guaranteeing the core function; When the real-time generated power is lower than the real-time processing load, the power supply of the pulse type asymmetric voltage is preferentially ensured, and intermittent power supply is carried out on the low-priority load.
9. A rural decentralized, medicament-free integrated electrochemical drinking water treatment system according to claim 1, wherein the system further comprises: Performing low-intensity cyclic electrolysis on the standing water filled with the filtering bed layer to generate an activated cyclic water body; periodically and transiently switching to the self-cleaning regeneration mode, and performing microscopic disturbance on the surfaces of the porous conductive catalytic particles to generate an activated filter bed; And monitoring the oxidation-reduction potential of the activated circulating water body, and automatically switching to a normal operation mode after the oxidation-reduction potential is stabilized in a preset interval for representing the completion of activation.

Description

Rural distributed chemical-free integrated electrochemical drinking water treatment system Technical Field The invention relates to the technical field of water treatment, in particular to a rural distributed chemical-free integrated electrochemical drinking water treatment system. Background The rural decentralized sewage treatment system is an important infrastructure for guaranteeing drinking water safety of residents in remote areas, and aims to purify unstable raw water such as surface water, underground water and the like into clean water meeting the living drinking standard on site. Such systems are generally required to be compact in structure, easy and convenient to operate, low in maintenance cost and stable in treatment effect, so as to adapt to the economic and technical conditions and the scattered living characteristics of rural areas. Electrochemical water treatment is an emerging technology, and has the advantages of no need of adding chemical agents, easy automation of equipment and the like, and has wide application prospect in the field. In the related art, chinese patent publication No. CN112374663B discloses a system and a method for treating organic wastewater by three-dimensional electrocatalytic oxidation of a liquid-solid fluidized bed, wherein solid suspended matters in the organic wastewater are removed by gravity sedimentation and filtering equipment, so that the wastewater is pre-purified. Through aeration treatment, the catalyst and the organic wastewater are fully mixed, and catalytic components in the electrolytic gas are effectively utilized. The high-efficiency pyrolysis of organic matters in the wastewater is realized through plate-frame electrolytic coupling fluidized bed three-dimensional electrolysis. The water quality is regulated to be acidic and alkaline by adding the medicament, so that the standard discharge is realized. In the plate-frame electrolysis, the mode of parallel current and serial water flow is adopted, so that the water quality circulation is enhanced, the mass transfer efficiency is improved, and the cracking of organic matters is promoted. However, the above prior art scheme has the following technical drawbacks. In the prior art, the acid and alkali of water quality needs to be regulated by adding a medicament so as to ensure the treatment effect. The cost of purchasing, transporting and storing the medicament is increased, secondary pollution can be caused to the effluent quality due to improper control of the medicament adding amount, and meanwhile, the requirement on the professional skill of operators is also improved. In the prior art, solid suspended matters are removed by gravity sedimentation and filtering equipment, then aeration treatment is carried out, and the whole flow has multiple steps and large equipment volume. The design is more suitable for a centralized sewage treatment scene, and is difficult to adapt to application conditions of decentralized residence, limited space and weak infrastructure in rural areas. The treatment flow in the prior art relies on more manual intervention links and lacks on-line monitoring and self-adaptive regulation and control capability. The method is characterized by large fluctuation of rural raw water quality, operation parameters cannot be adjusted in real time, and unstable treatment effect is easy to occur. Meanwhile, the system lacks a self-cleaning regeneration function, the filtering and catalyzing components are easy to block, and professional staff is required to regularly unpick, wash and maintain, so that the long-term operation and maintenance burden is increased. In the prior art, a plate-frame electrolytic coupling fluidized bed three-dimensional electrolytic structure is adopted, and a dynamic power distribution strategy is not designed. When the power supply is unstable, the continuous operation of the core electrolysis function is difficult to ensure. In addition, the impact load tolerance of the system to raw water quality and water quantity is low, the system cannot respond quickly when the water quality is suddenly changed, and the water quality of the effluent is easy to be up to the standard. Disclosure of Invention In order to solve the problems, the invention provides a rural distributed medicament-free integrated electrochemical drinking water treatment system, which realizes rural medicament-free integrated drinking water treatment through intelligent electrochemical electrolysis, catalytic oxidation filtration, self-cleaning regeneration and intelligent regulation and control functions. The above object can be achieved by the following scheme: A rural decentralized chemical-free integrated electrochemical drinking water treatment system comprises an electrochemical electrolysis module, a catalytic oxidation filtering module, a self-cleaning regeneration module and an intelligent regulation module, wherein the electrochemical electrolysis module is used for applying pulse as