RU69513U1 - ANIMAL WASTE CLEANING SYSTEM STRUCTURES - Google Patents

Abstract

The proposed technical solution relates to the field of agriculture and can be used for wastewater treatment of livestock complexes. In order to intensify the process of cleaning livestock stocks and thereby eliminate the use of clean water in fish ponds, bioengineering facilities are located in front of the latter, consisting of a botanical site and a grassed sloping terrace on which transverse redistribution trenches with floating walls with culverts are located.

Description

The proposed technical solution relates to the field of agriculture and can be used for wastewater treatment of livestock complexes.

A known system of wastewater treatment, including biological oxidation ponds and an agricultural field for tertiary treatment of wastewater by irrigation on a slope sown with herbs (ed. St. USSR No. 1837050, class C02F 3/32, 1993).

A disadvantage of the known system is the uneven distribution of flow over the sown area, which reduces aeration, and hence the post-treatment of wastewater.

The closest in technical essence and the achieved effect is a system for cleaning the liquid fraction of the effluents of livestock complexes, including facilities consisting of sequentially located algae, crustacean, fish ponds and equipped with a bioengineering structure in the form of a botanical site (ed. St. USSR No. 1806102, class C02F 11/02, 1993).

The disadvantage of the system is the need to use large amounts of clean water to dilute the effluent of fish ponds.

The objective of the proposed solution is to intensify the process of post-treatment of wastewater in order to exclude the use of clean water in fish ponds.

The task is achieved in that the bioengineering structure is located in front of the fish pond and consists of a botanical site and a grassed sloping terrace, with redistribution elements located on it, made in the form of transverse trenches with floating walls with culverts.

The technical result of the proposed solution is ensured by the uniform distribution of the treated effluents over an inclined terrace sown with herbs.

Figure 1 presents a General diagram of the structures of the treatment system for livestock waste; figure 2 is a cross section of an inclined terrace.

The constructions of the livestock wastewater treatment system consist of algae 1 and crustacean 2 ponds, a botanical site 3, vegetation planted with higher water, planted with perennial moisture-loving grasses on the inclined terrace 4 and the fish-breeding pond 5.

The inclined terrace 4 includes an irrigator 6, a filter layer 7, transverse redistribution trenches 8 with watertight screens 9 and floating walls 10 in which culvert holes 11 are made. Each redistribution trench 8 is connected to a downstream trench with drain pipes 12 equipped with valves (in Fig. not shown).

The floating wall 10 is made in the form of a float, with the help of which the weight of the irrigation fluid is maintained up to 5-10 cm.

The work of the facilities of the livestock waste treatment system is as follows.

The liquid fraction of livestock effluents intended for treatment enters alternately in algae 1, crustacean 2 ponds and on the botanical site 3, where intensive effluent treatment takes place. Then, the effluents to be cleaned undergo additional purification on the sown inclined terrace 4. First, they enter the irrigator 6 located at the upper elevation of the slope, from which it is distributed in a thin layer along the slope of the terrace 4. Then, the liquid flows lower down the slope and enters the transverse redistribution trenches 8, which designed for uniform distribution of effluent over the surface of the slope. While the valve on the spillway 12 is closed. When the trench 8 is filled, the floating wall 10 floats up and creates a backwater for the liquid to be cleaned, which evenly overflows through the wall 10 and the culverts 11 are aerated in contact with air and enter the next section of the terrace 4.

At the end of irrigation, the valves on the spillways 12 of the upper redistribution trench 8 open and the liquid to be cleaned flows into the trench, which follows the slope.

Alternate discharge of effluents from the redistribution trenches 8 provides additional purification by increasing their interaction time with the filter layer 7, grass and air.

After the discharge of treated effluents from the trench 8, the floating wall 10 is lowered.

At the end of the terrace, the cleaned liquid is discharged into a fish pond 5.

The use of the proposed facilities in the wastewater treatment system provides complete wastewater treatment and thereby eliminates the need to use clean water for fish farming.

Claims (1)

Facilities of a livestock waste treatment system, including sequentially located algal, crustacean, fish ponds and a bioengineering structure in the form of a botanical site, characterized in that the bioengineering structure is located in front of the fish pond and consists of a botanical site and a grassed sloping terrace, with redistribution elements located on it made in the form of transverse trenches with floating walls having culverts.