Method for distributing holes for subsurface infiltration sewage dispersion pipe

Abstract

The invention discloses a method for distributing holes for a subsurface infiltration sewage dispersion pipe, which comprises the following steps of: opening a water inlet end of the sewage dispersion pipe, and closing the other end of the sewage dispersion pipe, wherein the length of the sewage dispersion pipe is 12 to 18 meters, and the diameter of the inner wall is 60 to 80mm; using the water inlet end of the sewage dispersion pipe as a starting point, uniformly drilling small holes with the diameter of 8mm according to the space between 8 and 10cm on the pipe wall of the front 4-6 meters, and uniformly drilling small holes with the diameter of 8mm according to the space between 6 and 8cm on the pipe wall of the rear 8-12 meters; drilling 3 small holes on the same circular section of the sewage dispersion pipe, taking the 90-degree sector of the circular section, drilling a small hole at two ends of the sector arc respectively, and drilling a small hole in the center of the arc; embedding the holed water dispersion pipe into a sand layer in a mode that the central small hole is vertically downward, wherein the embedding depth is 0.5 meter; and continuously injecting sewage through the water inlet of the sewage dispersion pipe, analyzing the effluent quality, and monitoring the effluent amount. The method has the characteristics of improving the uniformity of sewage dispersion, preventing from producing water supersaturation of local soil layer, preventing pollution overload, and improving the sewage treatment effects.

Description

Technical field: [0001] The invention relates to a method for purifying sewage by using an underground infiltration treatment technology, in particular to a hole-laying method for underground infiltration water pipes of sewage. Background technique: [0002] Underground infiltration is a sewage ecological treatment technology formed by integrating anaerobic and aerobic treatment processes. The basic principle is: the sewage is distributed into the water distribution pipe after being treated by sedimentation and hydrolysis in the pretreatment process, and the sewage flows out evenly from the water distribution pipe, penetrates into the aerobic filter layer, and then diffuses under the action of soil capillary force and gravity Movement, full contact with the soil, through the joint action of the soil-microbe-plant system, the pollutants in the water are physically separated, chemically adsorbed and biodegraded, and the purified water is collected through the water collection ...

AI Technical Summary

Problems solved by technology

However, because the water distribution pipes are usually arranged with holes at equal intervals, the water distribution is uneven, and the water in the local soil layer is oversaturated, and the pollution load is overloaded, which greatly affects the sewage treatment effect.

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