Flow electrode capacitive deionization ammonia removal performance prediction and control system
A capacitive deionization and control system technology, applied in the control/manipulation system, separation method, dispersed particle separation, etc., can solve the problems of inability to form ammonia removal performance, prediction and control system, no mechanism and model prediction analysis, etc., to achieve The effect of reducing the rotation speed and power output value, high removal efficiency and low energy consumption
Active Publication Date: 2021-12-31
CHINESE RES ACAD OF ENVIRONMENTAL SCI
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] However, the research on the existing FCDI model is only focused on the removal of NaCl, and the research on ammonia removal is currently only in the experimental stage to determine the approximate optimal working conditions and energy consumption. There is no further mechanism and model prediction analysis, so now Some research results cannot form an overall ammonia removal performance prediction and control system
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment example
[0154] Taking the simulated wastewater of 1g / L NaCl and 76.43mg / L NH4Cl as an example, the current density applied to both ends of the FCDI device is 21.85A / m2, the mass fraction of activated carbon in the electrode solution is 10%, and the wastewater is pumped into the desalination chamber from the water tank. The flow rates are 0.7, 1.2, 1.69, 2.4 and 3.1mL / min, respectively. Substituting the experimental data into the model as the basic iterative data can solve the combination of process parameters that make the removal efficiency and energy consumption reach a relatively ideal state. At this point the model for NH4 + The simulation accuracy of removal efficiency reaches 93.8%, which proves the effectiveness of the model. When the influent flow rate is 1.24mL / min, the ammonia removal efficiency is 75.1% and the energy consumption is 31.27kWh / kg N calculated by the model, reaching an ideal state.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a flow electrode capacitive deionization (FCDI) ammonia removal performance prediction and control system. The system specifically utilizes a provided prediction model to solve the water inlet flow velocity and the impressed current required for stabilizing the effluent NH4<+> concentration of an FCDI device at a target value, the water inlet flow velocity and the impressed current value are set as a water inlet flow velocity set value and an impressed current set value of the FCDI device; and then the rotating speed regulation of the pump and the current output value of the power supply are controlled through the computer, so that the water inlet flow rate and the impressed current of the FCDI device are stabilized near set values. According to the invention, the purpose of predicting, directly influencing or controlling the concentration of NH4<+> in the effluent of the FCDI device can be achieved; and the ammonia removal process is optimized, the ammonia removal performance of the FCDI device is improved in a targeted manner, the problem that a current FCDI ammonia removal process is lack of theoretical guidance is solved, and the removal effect of NH4<+> in effluent of a sewage plant and the energy-saving and consumption-reducing level are improved.
Description
technical field [0001] The invention relates to NH in sewage treatment 4 + Concentration automatic control technology field, especially related to a flow electrode capacitive deionization technology based on precise water flow rate and external current regulation system of water NH 4 + concentration control system. Background technique [0002] With the vigorous development of the industrial economy and modern agriculture, a large amount of nutrients flow into the receiving water body, resulting in eutrophication of the water body, affecting the growth and reproduction of aquatic organisms, causing huge ecological and economic losses, and may cause human health and environmental problems. Potential safety hazards, among which nitrogen nutrients are one of the important factors causing eutrophication and pollution of water bodies. [0003] In addition, due to the limitation of environmental capacity, even if the ammonia nitrogen in the domestic sewage tail water reaches t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/469G06F30/20G06F17/12C02F101/16
CPCC02F1/4691C02F1/008G06F30/20G06F17/12C02F2101/16
Inventor 王宏洋李翱朱光灿赵晓丽孙宇巍张明慧汪霞
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI