Simple fecal sewage treatment device and simple fecal sewage treatment method

Abstract

The invention discloses a simple fecal sewage treatment device and a simple fecal sewage treatment method using the device. The simple fecal sewage treatment device comprises a pond, wherein a fecal storage tank is arranged at the bottom of the pond; a gas collecting cover covers the fecal storage tank; a stand column is arranged in the middle of the fecal storage tank; a gas outlet pipe extendingout of the gas collecting cover is arranged on the stand column; a vent hole is formed in a position, below the gas collecting cover, of the gas outlet pipe; the upper portion of the gas outlet pipeis positioned above the water surface and is provide with a liquid sealing pipe; and a feeding pipe and a discharging pipe are respectively arranged on the side wall of the fecal storage tank. According to the device and the method, biogas production device is built below the pond, therefore, not only can the fecal from a breeding farm be treated through anaerobic and aerobic combination, but alsothe biogas can be directly conveyed to peripheral users for use by utilizing the pressure of water, that is, the produced biogas does not need to be additionally pressurized; and meanwhile, fish canbe cultured above the pond, and multiple benefits are produced.

Description

technical field [0001] The invention relates to the field of treatment, collection and utilization of manure, in particular to a method and device for simple manure treatment. Background technique [0002] The current manure treatment technologies are as follows: (1) Composting method: aerobic composting is mainly used for dry manure or manure after solid-liquid separation. Composting is to convert insoluble organic matter in manure into soluble organic matter. Facilitate plant absorption. Disadvantages: Aerobic composting will cause the spread of odor and cause environmental pollution problems. At the same time, composting will cause the growth of fly maggots, which will affect the normal life of surrounding residents; (2) Oxidation pond method: mainly used for sewage after solid-liquid separation processing, low cost and easy implementation. Disadvantages: The natural oxidation method takes a long time and requires a large area of ​​the oxidation pond, which is difficult...

AI Technical Summary

Problems solved by technology

Disadvantages: Aerobic composting will cause the spread of odor and cause environmental pollution problems. At the same time, composting will cause the growth of fly maggots, which will affect the normal life of surrounding residents; (2) Oxidation pond method: mainly used for sewage after solid-liquid separation processing, low cost, easy implementation

Disadvantages: The natural oxidation method takes a long time and requires a large area of ​​the oxidation pond, which is difficult for ordinary small and medium-sized farms; the indicators such as E. coli and roundworm eggs in the natural oxidation are difficult to meet the standards for land absorption; Odor and fly problems are likely to cause troubles to surrounding residents

Disadvantages: huge investment, not suitable for most farms, and no resource utilization of manure

The cost of building a biogas digester with the existing biogas technology is high, and it is difficult for ordinary farmers to afford it. Moreover, when transporting biogas to surrounding users, it needs to be pressurized in various ways to achieve the pressure of biogas transportation, which increases the difficulty of construction. At the same time, it is not conducive to the management and maintenance of the biogas digester.

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