NL2032922A9 - Mass-Production Comprehensive Vinasse Treatment Process And System - Google Patents

Mass-Production Comprehensive Vinasse Treatment Process And System Download PDF

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Publication number
NL2032922A9
NL2032922A9 NL2032922A NL2032922A NL2032922A9 NL 2032922 A9 NL2032922 A9 NL 2032922A9 NL 2032922 A NL2032922 A NL 2032922A NL 2032922 A NL2032922 A NL 2032922A NL 2032922 A9 NL2032922 A9 NL 2032922A9
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NL
Netherlands
Prior art keywords
vinasse
liquid
water
treatment system
spiral blade
Prior art date
Application number
NL2032922A
Other versions
NL2032922B1 (en
NL2032922A (en
Inventor
Tsou Chih-Yuan
Jin Yongzhong
Tsou Chi-Hui
Yang Tao
Chen Shuang
Hu Xuefei
Original Assignee
Chi Hui Tsou
Chih Yuan Tsou
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Publication date
Application filed by Chi Hui Tsou, Chih Yuan Tsou filed Critical Chi Hui Tsou
Publication of NL2032922A publication Critical patent/NL2032922A/en
Publication of NL2032922A9 publication Critical patent/NL2032922A9/en
Application granted granted Critical
Publication of NL2032922B1 publication Critical patent/NL2032922B1/en

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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F5/00—Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
    • C05F5/006—Waste from chemical processing of material, e.g. diestillation, roasting, cooking
    • C05F5/008—Waste from biochemical processing of material, e.g. fermentation, breweries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/02—Combinations of filters of different kinds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/102—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration with means for agitating the liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/20—Liquid fertilisers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G31/00—Soilless cultivation, e.g. hydroponics
    • A01G31/02—Special apparatus therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Botany (AREA)
  • Biotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pest Control & Pesticides (AREA)
  • Food Science & Technology (AREA)
  • Environmental Sciences (AREA)
  • Fertilizers (AREA)
  • Processing Of Solid Wastes (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Centrifugal Separators (AREA)

Abstract

A mass-production comprehensive vinasse treatment system includes a vinasse conveying system, a vinasse washing system, a vinasse liquid utilization and circulation system, and a cleaned vinasse treatment system. The vinasse conveying system includes 5 a feeder and an inclined conveyor belt. An inlet and an outlet of the inclined conveyor belt are provided at an outlet of the feeder and an inlet of a centrifugal washing device respectively. The vinasse washing system includes the centrifugal washing device and multiple cascaded spiral blade solid-liquid separation devices for heavy materials each provided with a spiral blade separator, a high-pressure water spraying port, and a liquid drain 10 valve connected to a vinasse liquid conveying pipe. The cleaned vinasse treatment system includes a belt filter press, a drying machine, and a crushing and grinding machine.

Description

Chi-Hui Tsou and Chih-Yuan Tsou 22/066 PDNL
Mass-Production Comprehensive Vinasse Treatment Process And System
Technical Field
The present invention belongs to the technical field of environmental protection, relates to a vinasse treatment device, and in particular, to a mass-production comprehensive vinasse treatment system.
Background Art
Vinasse is a residue remaining after brewing fermentation and coarse filtration of grains, and a vinasse waste liquid is attached thereto. The vinasse waste liquid is a high- concentration organic waste liquid with a certain density. Due to complex composition and high water content, vinasse may be rotten if not treated in time.
At present, in the mainstream comprehensive utilization modes of vinasse, the extraction of related substances creates the maximum regeneration value for vinasse.
However, the process is complex, the residue after extraction will also cause serious pollution to the environment. A methane recovery method results in a gratuitous waste of large quantities of high-quality resources. In practical application, vinasse tastes bad when used directly as feed, and the high-concentration organic waste liquid has some pollution.
Moreover, vinasse will mildew within a short time, and cannot be stored for a long time. In the existing methods, there is a lack of a pipelining treatment mode with high comprehensive economic efficiency and capable of avoiding environmental pollution.
Summary of the Invention
In order to overcome the defects of the prior art, the present invention discloses a mass-production comprehensive vinasse treatment system, including: a vinasse conveying system, a vinasse washing system, and a cleaned vinasse treatment system.
The vinasse conveying system includes a feeder and an inclined conveyor belt.
An inlet of the feeder is flush with an upper table of a vinasse stacking platform for stacking vinasse. An inlet and an outlet of the inclined conveyor belt are provided at an outlet of the feeder and an inlet of a centrifugal washing device respectively.
The vinasse washing system includes the centrifugal washing device and multiple cascaded spiral blade solid-liquid separation devices for heavy materials. Each of the spiral blade solid-liquid separation devices for heavy materials is provided with a spiral blade separator, a high-pressure water spraying port, and a liquid drain valve connected to a vinasse liquid conveying pipe. The cleaned vinasse treatment system includes a belt filter press, a drying machine, and a crushing and grinding machine.
Preferably, the mass-production comprehensive vinasse treatment system further includes a vinasse liquid utilization and circulation system including a temporary vinasse liquid storage tank connected to the vinasse liquid conveying pipe, and a hydroponic field connected to the temporary vinasse liquid storage tank. A water pump is connected to a water outlet of the hydroponic field, and the hydroponic field is connected to a dry field and a temporary circulating water storage tank through the water pump. The temporary circulating water storage tank is in pipe connection with the high-pressure water spraying ports of the spiral blade solid-liquid separation devices for heavy materials and a water inlet of the centrifugal washing device.
Preferably, the spiral blade solid-liquid separation device for heavy materials includes an inlet tank having a discharge-up channel with a semi-circular cross section. A spiral blade separator is provided in the discharge-up channel. A discharge port is provided at the end of the discharge-up channel. The liquid drain valve is provided at the bottom of the inlet tank.
Beneficial Effects: 1. According to the mass-production comprehensive vinasse treatment system, vinasse is treated by adopting an efficient mass production manner. A product may be stored for a long time. The utilization value of the vinasse is improved after treatment, and the problem that the vinasse is very prone to rotting is solved. 2. A solid waste obtained by using the mass-production comprehensive vinasse treatment system may be stored for a long time and also used as raw materials and fillers of biodegradable materials since brewed fermented products and impurities are washed away. The product may be used in various fields, thereby effectively turning waste into treasure. 3. According to the mass-production comprehensive vinasse treatment system, vinasse is washed before being dried, thereby reducing the cleaning difficulty. 4. According to the mass-production comprehensive vinasse treatment system, vinasse is washed before being crushed and ground, thereby greatly improving the cleaning efficiency. 5. According to the mass-production comprehensive vinasse treatment system, vinasse liquid produced in the cleaning process is applied, as a liquid fertilizer, to agricultural cultivation, thereby achieving maximum utilization of the residual value of vinasse while solving the problem of environmental pollution. 6. The mass-production comprehensive vinasse treatment system ensures normal growth of different crops and allows full use of vinasse liquid.
7. In the mass-production comprehensive vinasse treatment system, vinasse liquid absorbed and purified by crops is recycled, thereby completing the treatment of vinasse while reducing the waste of water resources. 8. By means of a high-low water head layout of the device and the system, vinasse liquid is conveyed in the treatment system in an energy-saving manner, and the effects of different process requirements and local conditions can be achieved by various layout modes.
Brief Description of the Drawings
FIG. 1 is a schematic diagram of a specific flow of a mass-production comprehensive vinasse treatment system according to the present invention during operation.
FIG. 2 is a schematic diagram of a specific embodiment of the comprehensive vinasse treatment system according to the present invention.
FIG. 3 is a schematic diagram of another specific embodiment of the comprehensive vinasse treatment system according to the present invention.
FIG. 4 is a schematic diagram of a specific embodiment of a spiral blade solid- liquid separation device for heavy materials according to the present invention.
FIG. 5 is a schematic diagram of a specific embodiment of a vinasse liquid utilization and circulation system according to the present invention.
FIG. 6 is a cross-sectional schematic diagram of a specific embodiment of a hydroponic field according to the present invention.
Main symbols in the drawings: 1. feeder; 2. inclined conveyor belt; 3. centrifugal washing device; 4. spiral blade solid-liquid separation device for heavy materials; 41. overflow port; 42. liquid drain valve; 43. discharge port; 44. overflow port water line; 5. inclined gradient groove; 51. high-pressure water spraying port; 6. temporary vinasse liquid storage tank; 61. overflow channel; 7. aeration blower; 8. hydroponic field; 81. foam plate; 82. planting tank; 83. planting hole; 9. crop; 10. vinasse stacking platform; 11. treatment system ground.
Detailed Description of the Embodiments
A mass-production comprehensive vinasse treatment system of the present invention includes a vinasse conveying system, a vinasse washing system, and a cleaned vinasse treatment system.
The vinasse conveying system includes a feeder 1 and an inclined conveyor belt 2. An inlet of the feeder is flush with an upper table of a vinasse stacking platform 10 for stacking vinasse, thereby facilitating the feeding of vinasse into the feeder. An inlet and an outlet of the inclined conveyor belt 2 are provided at an outlet of the feeder and an inlet of a centrifugal washing device 3 respectively.
As shown in FIG. 2, vinasse enters from a top opening of the feeder. A semi- basement may also be provided below the ground where the vinasse stacking platform is located. The feeder and the inclined conveyor belt are provided in the semi-basement. An upper end of the feeder is flush with the upper table of the vinasse stacking platform where the vinasse is stacked. In FIG. 2, the vinasse stacking platform where untreated vinasse is temporarily stacked is in the same plane as a treatment system ground 11, so as to facilitate the feeding of the vinasse. The treatment system ground 11 is a high-low water head index line of a comprehensive vinasse treatment system in a pipelining form and a vinasse liquid utilization and circulation system included therein. An overflow port water line 44 is located above the high-low water head index line, thereby facilitating conveying of vinasse liquid in the entire system and also contributing to the layout of a hydroponic field in the vinasse liquid utilization and circulation system.
As shown in FIG. 3, a pipeline may also be provided on the treatment system ground 11. The feeder and the vinasse stacking platform 10 are provided above the treatment system ground 11. A lower end of the outlet of the feeder is a material inlet of the centrifugal washing device. A pipelining device is simplified according to actual situations of a workshop.
The inclined conveyor belt 2 feeds vinasse into the vinasse washing system, including the centrifugal washing device 3 and multiple cascaded spiral blade solid-liquid separation devices for heavy materials 4. The number depends on different vinasse or final product process requirements, and is generally 2-4. As shown in FIGS. 2 and 3, the number of spiral blade solid-liquid separation devices for heavy materials is changed. Each of the spiral blade solid-liquid separation devices for heavy materials is provided with a spiral blade separator, a high-pressure water spraying port 51, and a liquid drain valve 42 connected to a vinasse liquid conveying pipe.
The centrifugal washing device is internally provided with a water inlet and a rotating blade. The rotating blade rotates at a high speed to drive water and vinasse to collide centrifugally, so as to wash out soluble starch, protein, soluble organic matters and various bacterial colonies in the vinasse.
During washing, the ratio of a volumetric feed rate of the vinasse to a volumetric inflow rate in the centrifugal washing device may be, for example, set as 1:4. The dynamic balance of mixed liquid in the centrifugal washing device is achieved by adjusting the feed rate and the inflow rate to match the discharge rate of the mixed liquid at the discharge port.
By washing the vinasse prior to drying, crushing and grinding, much of the ferment in the vinasse liquid is prevented from entering the interior of the vinasse and drainage of the vinasse is facilitated, thereby greatly improving the cleaning efficiency and the cleaning degree.
The spiral blade solid-liquid separation devices for heavy material dewaters the wet vinasse through the spiral blade separator, and uses the high-pressure water spraying 5 port to wash the dewatered vinasse again, so as to remove easily soluble organic matters in the vinasse. The washed vinasse is filter-pressed by a belt filter press, dried by a drying machine, and crushed by a crushing and grinding machine to obtain a dried vinasse solidified product.
As shown in FIG. 4, a specific embodiment of the spiral blade solid-liquid separation device for heavy materials 4 is provided. The device includes an inlet tank having a discharge-up channel with a semi-circular cross section. A spiral blade separator is provided in the discharge-up channel. A discharge port is provided at the end of the discharge-up channel. The liquid drain valve is provided at the bottom of the inlet tank.
A mixture of vinasse and water in the centrifugal washing device enters the inlet tank of the spiral blade solid-liquid separation device for heavy materials. The rotating spiral of the spiral blade separator is upward along the discharge-up channel. A large amount of water precipitates and falls down in the inlet tank during the process of conveying the mixture of vinasse and water upwards, and a solid-liquid mixture with less water content is obtained at the top of the spiral blade separator. The vinasse may be thoroughly washed and most of the water may be removed by the multiple cascaded spiral blade solid-liquid separation devices for heavy materials.
In the embodiment shown in FIG. 4, an overflow port 41 is provided at an upper side wall of each inlet tank. The overflow port 41 may be in pipe connection with the vinasse liquid conveying pipe, thereby preventing the liquid level in the inlet tank from being too high, and collecting vinasse liquid after cleaning the vinasse. The overflow port 41 is provided with a filter screen for preventing the vinasse from flowing out. The overflow water line is above a horizontal plane of the treatment system ground 11, as shown in FIGS. 2 and 3, which will contribute to the energy-saving input of the vinasse liquid into a temporary vinasse liquid storage tank through the vinasse liquid conveying pipe by gravitational potential energy.
The vinasse after water filtration enters a rear inclined gradient groove 5 through a discharge port 43 of the spiral blade solid-liquid separation device for heavy materials.
Multiple linear grooves are arranged on the inclined gradient groove, whereby water flow sprayed from the high-pressure water spraying port may be in full contact with the vinasse to improve the cleaning degree of the vinasse. When the operation of the solid-liquid separation device is completed, the vinasse liquid in the inlet tank may be drained to the temporary vinasse liquid storage tank through the vinasse liquid conveying pipe via the liquid drain valve 42 below the inlet tank.
The last-stage high-pressure water spraying port in the multiple cascaded spiral blade solid-liquid separation devices for heavy materials is connected to a tap water pipe network. The cleaning degree of the vinasse is ensured by multiple washes and the final wash with tap water. After the vinasse is cleaned, excess water may be removed by entering the belt filter press via a conveyor belt, and the pressed water may be conveyed into the temporary vinasse liquid storage tank through the vinasse liquid conveying pipe. And then the vinasse is dried, crushed, ground, and packaged, and stored successively.
By conveying the vinasse between two filter cloths of the belt filter press, the vinasse is repeatedly squeezed and sheared by multiple groups of rollers to squeeze out the water in the vinasse, and then the filter cloths are sucked by a vacuum pump, whereby a large amount of cleaned vinasse may be continuously filter-pressed.
A drying chamber may be used for stepwise circulation drying, and the drying chamber may also be used for drying crops in the crop harvesting season, so as to realize the maximum utilization of the device.
The mass-production comprehensive vinasse treatment system further includes a vinasse liquid utilization and circulation system including a temporary vinasse liquid storage tank connected to the vinasse liquid conveying pipe, and a hydroponic field connected to the temporary vinasse liquid storage tank. A water pump is connected to a water outlet of the hydroponic field, and the hydroponic field is connected to a dry field and a temporary circulating water storage tank through the water pump. The temporary circulating water storage tank is in pipe connection with the high-pressure water spraying ports of the spiral blade solid-liquid separation devices for heavy materials and a water inlet of the centrifugal washing device.
The vinasse liquid in the vinasse liquid conveying pipe usually flows into the temporary vinasse liquid storage tank, and the vinasse liquid containing soluble starch, protein, soluble organic matters, etc. in the vinasse is drained into the hydroponic field as an agricultural nutrient solution.
The temporary vinasse liquid storage tank may also be equipped with an aeration blower 7 to add sufficient dissolved oxygen in a vinasse liquid water body, so as to meet the oxygen demands of aerobic organisms and to decompose organic matters in the vinasse liquid into crop nutrients. Multiple overflow channels 61 are provided above the temporary vinasse liquid storage tank 6 for overflowing water in an upper layer of the temporary vinasse liquid storage tank into the hydroponic field as a liquid fertilizer while preventing the overflow of the vinasse liquid.
Nutrients not available in the vinasse, such as water-soluble fertilizers containing nitrogen, phosphorus and potassium, may also be added into the temporary vinasse liquid storage tank through an adder, and are mixed uniformly by the aeration blower to ensure the normal growth of crops.
As shown in FIGS. 5 and 6, the upper layer of the hydroponic field is a foam plate 81, and the lower layer is a planting tank 82. The foam plate is provided with planting holes 83 uniformly arranged for plant planting. Planting nets immersed in the planting tank in the lower layer are provided inside the planting holes 83. The planting tank is connected to the temporary vinasse liquid storage tank.
Crops are planted in the planting nets, and hydroponic liquid is located below the foam plate. The hydroponic liquid is vinasse liquid overflowed from the temporary vinasse liquid storage tank. During the process of vinasse washing, a large amount of water will wash soluble organic matters attached to the vinasse to be diluted into vinasse liquid with a low concentration of multiple organic matters as a liquid fertilizer. In addition to the vinasse liquid, trace elements aiding in crop growth, other than the vinasse liquid, may be added.
When the vinasse liquid in the vinasse liquid conveying pipe is directly drained to a dry field ditch, the water outlet of the hydroponic field is closed to prevent the loss of agricultural production caused by the drop of the liquid level of the hydroponic liquid in the hydroponic field.
A water outlet of a greenhouse hydroponic farmland, water may be selectively used for draining water into a temporary circulating water storage tank through a water pump or used as a ditch for dry field irrigation by a water pump. According to a specific control mode, the water outlet of the hydroponic field is provided with a pH value monitoring device and a controller connected thereto, and the controller is also in control connection with the water pump.
The concentration of organic matters in water at the water outlet is determined by using a pH value as the standard. When the pH value is high, the concentration of organic matters is low, and the water in the hydroponic field may be drained to the temporary circulating water storage tank. When the pH value is low, the concentration of organic matters is high, and the water may be drained to the dry field ditch, further diluted with the water in the ditch and used for dry field irrigation. In this way, it is possible to further utilize the water in the hydroponic field as a dry field fertilizer and further as dry field irrigation water or system circulating water when the yield of the vinasse liquid is large.
NL2032922A 2021-09-01 2022-08-31 Mass-Production Comprehensive Vinasse Treatment Process And System NL2032922B1 (en)

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CN202111019359.XA CN113857201A (en) 2021-09-01 2021-09-01 Lees integrated processing system of assembly line formula

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CN113857201A (en) * 2021-09-01 2021-12-31 四川轻化工大学 Lees integrated processing system of assembly line formula

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CN113857201A (en) 2021-12-31
WO2023029595A1 (en) 2023-03-09
NL2032922B1 (en) 2023-04-06
NL2032922A (en) 2023-01-24
TW202402417A (en) 2024-01-16

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