Method for improving sewage treatment speed in low temperature environment
A technology of sewage treatment and reaction rate, applied in water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve unfavorable biochemical reactions, high investment cost and operating cost, affecting sewage Treatment plant operation and other problems, to achieve the effect of less investment, low maintenance cost and significant energy saving effect
Inactive Publication Date: 2011-11-16
BEIJING JINKONG DATA TECH
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Problems solved by technology
In Northeast China, the ambient temperature is below 0°C for a long time in a year, which seriously affects the normal operation of sewage treatment plants in this area, making many processes unable to give full play to their own characteristics and advantages
In order to solve this problem, in some cold regions, the biochemical reaction tank of the sewage treatment plant is built into an indoor type, and even the heating is turned on in winter to maintain the temperature of the reaction tank. The investment cost and operation cost are very high. Not conducive to the progress of biochemical reactions
Method used
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Embodiment 1
[0038] Taking a sewage treatment plant in North China as an example, the plant adopts the activated sludge method of A / A / O process, with a daily treatment capacity of 50,000 tons and an influent COD of 220mg / L. Since October, it has entered the low temperature season, and the lowest temperature -12°C, the average monthly temperature is as follows:
[0039] the month
average temperature
October
10℃
November
1℃
December
-7℃
January of the following year
-6℃
February of the following year
3℃
next March
9℃
[0040] The biological reaction tank of this sewage treatment plant is arranged in the plastic greenhouse of the present invention, and the biological reaction tank is 32 meters long and 12 meters wide. A total of 4 rows and 8 columns of supports are set up in the greenhouse, which are connected with each other and fixed with the guardrail of the structure. The supporting fram...
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The invention discloses a method for improving the sewage treatment speed in a low temperature environment, which is characterized in that a biological reaction tank is arranged in a greenhouse which comprises a support frame, a transparent material layer and a heat insulating material layer, wherein the transparent material layer is covered on the support frame, and the heat insulating material layer is covered on the transparent material layer. The invention has the advantages that: 1, the cost is low and the investment is less, and the adopted materials has low price, are easily purchased from northern area, and one-time investment is less; 2, the maintenance cost is low, and after the frame of the greenhouse is constructed, plastic and mats are replaced for one time within 2 to 3 years according to service conditions; 3, the operation is simple and easy, and the indoor temperature can be timely adjusted according to an indoor thermometer and weather situation; and 4, the energy-saving effect is obvious, and main source of temperature rise comprises solar energy and heat energy generated by a blower of the biological reaction tank during the aeration.
Description
technical field [0001] The invention belongs to the field of sewage treatment and water purification, and in particular relates to a method for improving the reaction rate of sewage treatment in a low-temperature environment. Background technique [0002] In the sewage treatment plants in northern my country, due to the low temperature, especially in winter, low temperature has become an important bottleneck restricting the improvement of sewage treatment efficiency. In Northeast China, the ambient temperature is below 0°C for a long time in a year, which seriously affects the normal operation of sewage treatment plants in this area, making many processes unable to give full play to their own characteristics and advantages. In order to solve this problem, in some cold regions, the biochemical reaction tank of the sewage treatment plant is built into an indoor type, and even the heating is turned on in winter to maintain the temperature of the reaction tank. The investment co...
Claims
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IPC IPC(8): C02F3/00C02F9/14C02F3/30
CPCY02W10/37
Inventor 杨斌刘载文王小艺许继平张立转
Owner BEIJING JINKONG DATA TECH