CN204359766U - A kind of mud nitrification activity intelligent analysis system - Google Patents

Abstract

The utility model proposes an intelligent analysis system for sludge nitrification activity. The system includes a control panel, a PLC controller, and a reaction device placed in the cabinet. The bottom of the reaction device is respectively connected with a drainage pipe, a drainage solenoid valve, an aeration pipe, Air head, aeration solenoid valve, the upper part is connected with water inlet pipe, water inlet solenoid valve, water inlet pump, dosing pipe and dosing pump in turn, one end of the aeration pipe is connected with the aeration head, and the other end is connected with the solenoid valve and aeration pump. pump, the system uses the method of monitoring the change of ammonia nitrogen value for a continuous period of time to calculate the sludge nitrification activity value, and the data analysis software uses the least square method and the simulation approximation method to analyze and calculate. This system is suitable for the determination of biological The nitrification activity of the activated sludge in the pool and the ammonia nitrogen nitrification rate of the activated sludge process have greatly improved the detection rate and the efficiency of real-time monitoring of the ammonia nitrogen nitrification rate.

Description

An intelligent analysis system for sludge nitrification activity

technical field

The utility model belongs to the technical field of sewage treatment, in particular to an intelligent analysis system for sludge nitrification activity.

Background technique

The problem of eutrophication of water bodies has become increasingly prominent, and the discharge standards for nitrogen and phosphorus have become increasingly stringent. my country promulgated in 2002 the "Urban Sewage Treatment Plant Pollutant Discharge Standards" to increase the emission concentration limits of total nitrogen and total phosphorus. At present, the development level of my country's sewage treatment industry still lags behind developed countries. The main problems currently faced by my country's sewage treatment industry are the low energy efficiency of sewage treatment facilities and the low compliance rate of sewage treatment. Statistics show that as of 2009, China has built about 1993 sewage treatment plants. In addition, my country proposed a binding target of reducing energy consumption per unit of GDP by about 20% during the "Eleventh Five-Year Plan" period. Goals, energy saving and consumption reduction is an urgent problem to be solved in our country. In order to ensure the efficient operation of sewage treatment plants, reduce the consumption of energy resources, improve the environmental quality of surrounding areas, give full play to the economic, environmental and social benefits of the sewage treatment system, and promote the sustainable development of economic construction, all new sewage treatment plants in my country need to be To achieve energy saving and consumption reduction under the premise of stably meeting the standards, most of the urban sewage treatment plants that have been built need to be transformed.

The total nitrogen removal rate of the sewage treatment plant needs to be further improved, and the blower energy consumption of the sewage treatment plant accounts for 30%-60% of the total plant energy consumption. The improvement of total nitrogen removal rate and the reduction of blower energy consumption are related to the aeration volume, so it is very important to set a reasonable air supply range. The nitrification activity of sludge, that is, the nitrification rate of ammonia nitrogen, is the key parameter for calculating and controlling the set value of air supply. The intelligent analysis system for sludge nitrification activity of the utility model can automatically measure the ammonia nitrogen nitrification rate in the biological pool in real time, can respond to the change of the nitrification rate in time, helps to adjust the gas supply parameters, and ensures the complete removal of ammonia nitrogen.

Utility model content

The utility model is composed of a set of automatic reaction device and a set of data analysis software. The automatic reaction device simulates the complete nitrification process of ammonia nitrogen by activated sludge in the biological pool, and monitors and collects ammonia nitrogen and dissolved oxygen data. The data analysis software is responsible for analyzing and processing the collected data, and calculating the nitrification rate value of sludge nitrification activity ammonium nitrogen.

The purpose of the utility model is to provide an intelligent analysis system for sludge nitrification activity for the analysis of sludge microbial activity and the measurement of ammonia nitrogen nitrification rate in the biological pool of sewage treatment plant. The method can meet the real-time monitoring of ammonia nitrogen nitrification rate.

The utility model calculates the value of sludge nitrification activity (ammonia nitrogen nitrification rate) by monitoring the change of ammonia nitrogen value in a continuous period of time. The data analysis software analyzes and calculates based on the least square method and the simulation approximation method. The system is suitable for measuring urban sewage The nitrification activity of activated sludge in the biological pool of the treatment plant, and the ammonia nitrogen nitrification rate of the activated sludge process.

Specifically, the utility model is to propose an intelligent analysis system for sludge nitrification activity. The analysis system includes a cabinet, a control panel installed on the front door of the cabinet, a PLC controller installed on the rear inner wall of the cabinet, and placed in the cabinet. The reaction device in the body, wherein the bottom of the reaction device is connected with drain pipe, drain solenoid valve, aeration pipe, aeration head, and aeration solenoid valve, and the upper part is connected with water inlet pipe, water inlet solenoid valve, water inlet pump in turn, and the dosing One end of the aeration pipe is connected to the aeration head, and the other end is connected to a solenoid valve and an aeration pump; the reaction device is equipped with an ammonia nitrogen measuring instrument, a dissolved oxygen measuring instrument and a liquid level sensor, and all the solenoid valves , water inlet pump, online ammonia nitrogen measuring instrument, solvent

The oxygen solution measuring instrument and the liquid level sensor are connected with the PLC controller, the PLC controller is connected with the control panel, and the online ammonia nitrogen measuring instrument and the dissolved oxygen measuring instrument are connected with the automatic cleaning device.

Further, the aeration pump provided by the utility model is a frequency conversion pump.

The characteristics and beneficial effects of the sludge nitrification activity intelligent analysis system:

1). During the measurement process, the subsequent measurement process can be adjusted from the display at any time, and the historical analysis measurement data can be viewed.

2). Simple operation, fully intelligent operation.

3). This intelligent analysis system for sludge nitrification activity can be widely used in the determination of nitrification rate along the biological pool of sewage treatment plants, which is convenient for technicians to understand the microbial activity and biochemical reaction process in the biological pool in time.

4). The intelligent analysis system for sludge nitrification activity is installed at the water inlet of the anaerobic section of the biological pool, where the ammonia nitrogen value in the biological pool is similar to that of the incoming water. According to the measured sludge nitrification activity, the aeration rate in the aerobic tank can be adjusted. If the sludge nitrification activity is high, the aeration rate in the aerobic tank can be appropriately reduced. If the sludge nitrification activity is poor, the aeration rate can be appropriately increased. Gas volume, contribute to the recovery of sludge nitrification activity.

5). The intelligent analysis system for sludge nitrification activity is used in conjunction with online instruments such as online ammonia nitrogen meter and online dissolved oxygen meter, which can better realize the optimal control of aeration volume, and more accurately supply air volume according to the demand of ammonia nitrogen nitrification, so as to reduce the Aeration energy consumption, the purpose of stabilizing effluent water quality. The use of this system can make the adjustment of parameters in the daily operation of sewage treatment plants more scientific and evidence-based, and help technicians analyze and predict changes in the treatment capacity of biological pools to ensure that the effluent water quality is safe and up to standard.

Description of drawings

Fig. 1 is a schematic diagram of an intelligent analysis system for sludge nitrification activity according to an embodiment of the present invention;

In the figure: 1. cabinet body; 2. control panel; 3. PLC controller; 4. reaction device; 5. drainage pipe; 6. drainage solenoid valve; 7. aeration pipe; 8. aeration head; 9. exposure Gas solenoid valve; 10. Water inlet pipe; 11. Water inlet solenoid valve; 12. Water inlet pump; 13. Dosing pipe; 14. Dosing pump; 15. Aeration pump; 16. Online ammonia nitrogen measuring instrument; 17. Dissolved oxygen Measuring instrument; 18. Liquid level sensor; 19. Cleaning device. the

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In describing the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplified descriptions, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, an integral connection, It can also be a detachable connection; it can be a mechanical connection or an electrical connection, or it can be the internal communication of two components; it can be directly connected or indirectly connected through an intermediary. For those of ordinary skill in the art, it can be based on Understand the specific meaning of the above terms in specific situations.

In order to achieve the above object, the utility model has taken the following technical solutions:

An intelligent analysis system for sludge nitrification activity, the analysis system includes a cabinet 1, a control panel 2 installed on the front door of the cabinet, a PLC controller 3 installed on the rear inner wall of the cabinet, and a reaction device 4 placed in the cabinet. Among them, the bottom of the reaction device 4 is respectively connected with the drain pipe 5, the drain solenoid valve 6, the aeration pipe 7, the aeration head 8, and the aeration solenoid valve 9, and the upper part is connected with the water inlet pipe 10, the water inlet solenoid valve 11, and the water inlet pump in turn. 12, dosing tube 13, dosing pump 14. One end of the aeration pipe 7 is connected with the aeration head 8, and the other end is connected with a solenoid valve 9 and an aeration pump 15. In the reaction device 4, an ammonia nitrogen measuring instrument 16, a dissolved oxygen measuring instrument 17 and a liquid level sensor 18 are installed. All solenoid valves, water inlet pump 7 , online ammonia nitrogen measuring instrument 16 , dissolved oxygen measuring instrument 17 and liquid level sensor 18 are connected with PLC controller 3 , and PLC controller 3 is connected with control panel 2 . The online ammonia nitrogen measuring instrument 16 and the dissolved oxygen measuring instrument 18 are connected with the automatic cleaning device 19 . Among them, the aeration pump is preferably a variable frequency pump.

Adopt a kind of sludge nitrification activity intelligent analysis system described in the utility model, according to the measured sludge nitrification activity, can adjust the aeration rate in the aerobic pool, if the sludge nitrification activity is high, the aeration rate in the aerobic pool The amount of aeration can be appropriately reduced, and the nitrification activity of the sludge is poor. The aeration amount can be increased appropriately, which is helpful for the recovery of the nitrification activity of the sludge, and the utility model adopts an intelligent analysis system for the nitrification activity of the sludge, an online ammonia nitrogen meter, an online dissolved oxygen With the use of on-line instruments such as a meter, it can better realize the optimal control of the aeration volume, and more accurately supply the air volume according to the demand for ammonia nitrogen nitrification, so as to reduce the energy consumption of aeration and stabilize the water quality of the effluent. The use of this system can make the adjustment of parameters in the daily operation of sewage treatment plants more scientific and evidence-based, and help technicians analyze and predict changes in the treatment capacity of biological pools to ensure that the effluent water quality is safe and up to standard.

Various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principle and purpose of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims (2)

1. a sludge nitrification activity intelligent analysis system, is characterized in that, this analysis system comprises cabinet body (1), is installed on the control panel (2) on the cabinet front door, is installed on the PLC controller ( 3), the reaction device (4) placed in the cabinet, wherein the bottom of the reaction device (4) is respectively connected with a drain pipe (5), a drain solenoid valve (6), an aeration pipe (7), an aeration head (8 ), the aeration solenoid valve (9), the upper part is connected with the water inlet pipe (10), the water inlet solenoid valve (11), the water inlet pump (12), the dosing pipe (13), the dosing pump (14), and the aeration One end of the pipe (7) is connected to the aeration head (8), and the other end is connected to a solenoid valve (9) and an aeration pump (15); in the reaction device (4), an ammonia nitrogen measuring instrument (16), a dissolved oxygen measuring instrument (16), and a dissolved oxygen measuring instrument (16) are installed. Instrument (17) and liquid level sensor (18), all solenoid valves, water inlet pump (7), online ammonia nitrogen measuring instrument (16), dissolved oxygen measuring instrument (17), liquid level sensor (18) and PLC controller ( 3) are connected, the PLC controller (3) is connected with the control panel (2), and the online ammonia nitrogen measuring instrument (16), dissolved oxygen measuring instrument (18) is connected with the automatic cleaning device (19). 2. The intelligent analysis system according to claim 1, characterized in that the aeration pump (15) is a variable frequency pump.