Farmland non-point source pollution control system and method based on biomass charcoal and biomass vinegar

A technology of biomass vinegar and biochar, which is applied in botany equipment and methods, chemical instruments and methods, agriculture, etc., can solve the problems of secondary pollution of fillers, reduce pH value, and improve soil water and fertilizer retention Ability to reduce the effect of increasing ammonia volatilization

Pending Publication Date: 2018-11-13
INST OF SOIL SCI CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most types of ecological ditch interception methods are planting aquatic plants or installing some purification devices in the existing farmland drainage ditches. Although these measures have reduced the concentration of pollutants in farmland drainage to a certain extent, the water flow in the ditch Changes are obvious with the seasons, and aquatic plants need to be replaced and maintained frequently; the adsorption packing placed in the ditch also needs to be replaced regularly, and if the discarded packing is not properly disposed of, it will cause secondary pollution

Method used

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  • Farmland non-point source pollution control system and method based on biomass charcoal and biomass vinegar
  • Farmland non-point source pollution control system and method based on biomass charcoal and biomass vinegar
  • Farmland non-point source pollution control system and method based on biomass charcoal and biomass vinegar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] The farmland is a rice-wheat rotation system, and the system is arranged before transplanting in the rice season. The amount of biochar added to the soil used to make the ridge is 1% of the dry weight of the soil; the length, width, and height of the biochar box 7 in the farmland are respectively 0.5 m, 0.2 m, 0.4 m; the thickness of the thick side of the ditch biomass carbon box 5 is 0.2 m, the width of the wedge is 0.7 m, and the length from the thick side to the thin side of the wedge is 0.6 m; the diameter of the buoyancy rod 15 is 0.2 m, and the length is 0.65 m; the partition 12 is 5 cm higher than the soil surface, which can keep the paddy field at a 5 cm high water layer.

[0065] After the system is installed for the first time, apply the base fertilizer and transplant the rice in a timely manner. The amount of fertilizer application, the frequency and time of fertilization are the same as the conventional fertilization management.

[0066] When the amount of irr...

Embodiment 2

[0073] The farmland is a double-cropping rice system (two rice crops a year) system, and the system is arranged before the spring-summer rice transplanting. The amount of biochar added to the soil used to make the ridge is 1% of the dry weight of the soil; the biochar box in the farmland The length, width and height of 7 are 0.5 m, 0.3 m and 0.5 m respectively; the thickness of the thick side of the wedge-shaped ditch biochar box 5 is 0.3 m, the width of the wedge is 1 m, and the length from the thick side to the thin side of the wedge is 0.7 m; the buoyancy The rod 15 has a diameter of 0.3 m and a length of 0.95 m; the partition 12 is 5 cm higher than the soil surface, so that the paddy field can maintain a 5 cm high water layer.

[0074] After the system is installed for the first time, apply the base fertilizer and transplant the rice in a timely manner. The amount of fertilizer application, the frequency and time of fertilization are the same as the conventional fertilizati...

Embodiment 3

[0081] The farmland is a summer corn-winter wheat rotation system. The system is arranged before the start of the corn season. Depending on the actual needs of the farmland, it is determined whether to make field ridges. The amount of biochar added to the soil used to make field ridges is 2% of the dry weight of the soil; The length, width and height of the box 7 are 0.5 m, 0.2 m, and 0.4 m respectively; the thickness of the thick side of the wedge-shaped ditch biochar box 5 is 0.2 m, the width of the wedge is 0.6 m, and the length from the thick side to the thin side of the wedge is 0.6 m; The buoyancy rods are 0.2 m in diameter and 0.55 m in length; the partitions are flush with the soil surface.

[0082] After the system is installed for the first time, apply the basal fertilizer and sow corn at the right time. The fertilizer application amount, frequency and time of fertilization are the same as the conventional fertilization management.

[0083] When the amount of irrigat...

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Abstract

The invention relates to a farmland non-point source pollution control system and method based on biomass charcoal and biomass vinegar. After the biomass charcoal and the biomass vinegar are mixed, amixture is applied to a farmland; nutrient elements including nitrogen, phosphorus and the like, which are adsorbed by the biomass charcoal, can be repeatedly utilized by crops; the biomass charcoal and the biomass vinegar also contain mineral elements which are necessary for the growth of the corps, such as K, Ca, Mg, Zn, Mn and Fe, so that additional nutrient elements can be provided for the crops; meanwhile, after the biomass charcoal is applied to soil, a soil aggregate structure can be improved and the water retention and fertilizer preservation capability of the soil is improved; the utilization rate of fertilizer is improved; meanwhile, the application amount of basic fertilizer is reduced and a positive cycle of farmland pollutant emission reduction-fertilizer synergism-chemical fertilizer application reduction is realized.

Description

technical field [0001] The invention relates to a farmland non-point source pollution control system and control method based on biomass charcoal and biomass vinegar, belonging to the technical field of non-point source pollution control. Background technique [0002] With the effective control of point source pollution such as industrial wastewater and urban domestic sewage, rural non-point source pollution has replaced point source as the most important source of water environment pollution. Rural non-point source pollution refers to the dissolved or solid pollutants, such as nitrogen, phosphorus, pesticides and other organic or inorganic pollutants, from non-specific areas through surface runoff, farmland drainage and underground pollution in agricultural production and living activities. The process of seeping into the water body and causing water pollution. Farmland non-point source pollution has a wide distribution area, and the discharge of pollutants is highly rando...

Claims

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Application Information

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IPC IPC(8): C02F1/28C05G3/00C05G3/04A01G25/00C05G3/80
CPCA01G25/00C02F1/283C05D1/00C05G3/00C02F2301/08C02F2201/007C02F2103/001C05G3/80C05D3/00C05D5/00C05D9/00C05D9/02
Inventor 王远施卫明孙海军闵炬
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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