Method for implementing sludge decrement by using municipal sewage pipe network
A technology for reducing the amount of urban sewage and sludge, applied in the direction of aerobic and anaerobic process treatment, etc., can solve the problems of high equipment energy and operating costs, high treatment costs, large floor space, etc., to change the concept of sewage treatment, The effect of small investment and low cost
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specific Embodiment approach 1
[0007] Specific implementation mode one: combine figure 1 The present embodiment will be described. In this embodiment, a sludge delivery pipeline 2 is set between the sewage treatment plant of the urban sewage pipe network and the inspection well, and a bioreactor 7 is arranged on the main pipe or the main pipe 4 of the urban sewage pipe network, and the inspection well 5 and the biological reaction Aeration is applied in the device 7, and the reduced sludge through the urban sewage pipe network main pipe or the main pipe 4 and the bioreactor 7 is input into the sewage treatment plant 1 for recycling.
specific Embodiment approach 2
[0008] Embodiment 2: The difference between this embodiment and Embodiment 1 is that it also includes a device 3 for pre-shredding microbial cells in the sludge in the sludge conveying pipeline 2 on the sludge conveying pipeline.
specific Embodiment approach 3
[0009] Specific embodiment three: the difference between this embodiment and specific embodiment two is that the pre-crushing treatment device 3 selects ultrasonic device, microwave device, ozone and / or ClO 2 Dosing device.
[0010] Ultrasonic crushing is used to break microbial cells by using the dispersion effect of ultrasonic waves in liquids to cause cavitation in liquids, thereby breaking solid particles or cell tissues in liquids. Ultrasonic waves will generate powerful pressure waves in the liquid, and this pressure wave will form millions of microscopic bubbles. With the high-frequency vibration, the bubbles will grow rapidly and then close suddenly. When the bubbles close, due to the collision between the liquids The powerful shock wave generates a pressure of thousands of atmospheres around it (that is, ultrasonic cavitation), and the energy is enough to break and reorganize cells and various inorganic substances. The sludge treated by ultrasonic waves is conducive ...
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