A biogas slurry COD online monitoring and safe utilization control system and its application method
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A technology of regulation system and biogas slurry, which is applied in the direction of pressurized spreading method of liquid fertilizer, botany equipment and method, biochemical equipment and method, etc., can solve the problems of lack of online monitoring, safe utilization control links, lack of scientific basis, etc. , to achieve the effect of improving irrigation quality and efficiency, making up for uncertainty, and ensuring safety
Active Publication Date: 2018-01-23
JIANGSU ACAD OF AGRI SCI
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Problems solved by technology
Research on the safe use of biogas slurry mostly focuses on pipeline anti-blocking technology, and the amount of biogas slurry is mostly set based on production experience, lacking scientific basis, especially in the biogas slurry integrated water and fertilizer system, which lacks safe utilization of online monitoring control link
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Embodiment 1
[0041] like figure 1 As shown, the biogas slurry COD online monitoring and safe utilization control system includes more than one set of soil moisture monitor 1, COD online monitor 2, central system control box 3, biogas slurry pool, water storage tank, and fertilizer distribution device 18 , Three-level irrigation pipe network, pump room, solenoid valve 13, frequency converter 6;
[0042] The soil moisture monitor 1 is composed of a plurality of probe moisture sensors 110, a processing chip 120, and a control panel 130. The probe moisture sensors 110 are evenly distributed in the greenhouse area controlled by the soil moisture monitor 1 for detecting greenhouse Internal soil moisture, the processing chip 120 collects and processes the signals of a plurality of probe moisture sensors 110;
[0043] The tertiary irrigation pipe network is made up of main pipeline 14, branch pipeline 15, terminal pipeline 16, and its diameter decreases successively, and main pipeline 14 is conne...
Embodiment 2
[0060] like image 3 As shown, the biogas slurry COD online monitoring and safe utilization control system includes COD online monitor 2, central system control box 3, biogas slurry tank, water storage tank, irrigation pipeline 14, pump room, frequency converter 6, and turbine agitator 17;
[0061] The pump room is composed of a biogas slurry pump 4 and a water pump 5. The biogas slurry pool is a two-format biogas slurry pool. The external biogas slurry is initially precipitated in the sedimentation tank 8 and filtered through the grid 9 before entering the storage pool 10, effectively removing the biogas slurry. Larger particles of solid suspended matter in the liquid, and a large particle filter box 12 is placed in the biogas slurry storage tank 10 for further biogas slurry filtration, and the large particle filter box 12 is designed as a rectangular stainless steel frame, backwashing device, three sides 40-60 mesh stainless steel mesh wrapping, the opening of the filter ne...
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Abstract
The invention discloses a biogas slurry COD on-line monitoring and safe utilization regulating system. The biogas slurry COD on-line monitoring and safe utilization regulating system comprises a COD on-line monitoring instrument, a central system control box, a biogas slurry pool, a water storage pool, an irrigation pipeline, a pump room, a frequency converter and a turbine stirrer, wherein the pump room is composed of a biogas slurry pump and a water pump, the joint of the biogas slurry pump and the irrigation pipeline is closer to the water outlet of the irrigation pipeline compared with the joint of the water pump and the irrigation pipeline, the central system control box receives and processes a signal of the COD on-line monitoring instrument, and directly controls the operation of the water pump, the frequency converter controls the operation of the biogas slurry pump, and the turbine stirrer is arranged at the position, close to the water outlet of the irrigation pipeline, in the irrigation pipeline. The invention further discloses a use method of the safe utilization system. According to the system and the method provided by the invention, the COD on-line monitoring instrument is adopted for carrying out real-time monitoring on the biogas slurry before irrigation, and the combined application ratio of the biogas slurry to water is guided according to the monitoring result, so that the operating control based on the COD application safety is realized, further, the growth safety of crops is guaranteed, and in addition, an effective reference basis is provided for scientifically and reasonably utilizing the biogas slurry.
Description
technical field [0001] The invention relates to a biogas slurry COD online monitoring and safe utilization control system and a use method thereof. Background technique [0002] In recent years, the pollution of livestock and poultry breeding has attracted widespread public attention and the governments at all levels have attached great importance to pollution control decisions. Benefits also produced a large number of by-products, namely biogas slurry. The biogas slurry is rich in nitrogen, phosphorus, potassium, COD, etc. If it is directly discharged into the environment without subsequent treatment, it will have a serious impact on the self-purification function of the surrounding water body. It has become a key problem to be solved in water environment protection, and it has also plagued the health of animal husbandry for a long time. develop. [0003] Biogas slurry digestion in farmland is an ecological method to process and utilize biogas slurry through the joint act...
Claims
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