WO2019052206A1 - Méthode et équipement de recyclage et d'utilisation de déchets liquides dans un procédé de raffinage biologique de fibres herbacées - Google Patents

Méthode et équipement de recyclage et d'utilisation de déchets liquides dans un procédé de raffinage biologique de fibres herbacées Download PDF

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Publication number
WO2019052206A1
WO2019052206A1 PCT/CN2018/086424 CN2018086424W WO2019052206A1 WO 2019052206 A1 WO2019052206 A1 WO 2019052206A1 CN 2018086424 W CN2018086424 W CN 2018086424W WO 2019052206 A1 WO2019052206 A1 WO 2019052206A1
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WO
WIPO (PCT)
Prior art keywords
waste liquid
water
tank
solid
fiber
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PCT/CN2018/086424
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English (en)
Chinese (zh)
Inventor
刘正初
苏维利
李云峰
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大庆天之草生物新材料科技有限公司
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Publication of WO2019052206A1 publication Critical patent/WO2019052206A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0045—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Galacturonans, e.g. methyl ester of (alpha-1,4)-linked D-galacturonic acid units, i.e. pectin, or hydrolysis product of methyl ester of alpha-1,4-linked D-galacturonic acid units, i.e. pectinic acid; Derivatives thereof
    • C08B37/0048—Processes of extraction from organic materials
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection

Definitions

  • the present invention relates to the field of herbal fiber biorefinery. Specifically, it is a method and equipment for recycling and utilizing waste liquid of herbal fiber bio-refining process.
  • the loss of more than 40% of the raw materials in the water body has caused serious "face pollution" to the environment and is facing a crisis that has been eliminated by history.
  • the chemical method of “cooking of caustic soda solution” is based on the fact that more than 35% of the raw materials (including a large amount of non-cellulosic and a little cellulose with low crystallinity) are hydrolyzed into monomer components, resulting in COD in high-concentration wastewater. With a value exceeding 10,000 mg/L, its application surface is being severely limited.
  • the transitional "bio-chemical combination” method invented in 1985 because there is no mechanism to get rid of the chemical hydrolysis, so that the COD value in the high concentration wastewater is maintained at about 10000 mg / L.
  • the technical problem solved by the invention is to overcome the shortcomings of the existing waste liquid pollution environment in the production process of the herbal fiber, and to provide a method for recovering and utilizing the waste liquid of the herbal fiber bio-refining process.
  • the method for recovering and utilizing the waste liquid of the herbal fiber bio-refining process of the invention is used for treating the waste liquid generated during the bio-refining process of the herbal fiber, comprising the following steps:
  • the fibers are washed prior to dewatering the fibers.
  • the liquid obtained in the step (1) is subjected to a purification treatment.
  • the solid-liquid separation of the waste liquid of the water treatment device and the solid-liquid separation of the inactivation device are performed separately; the water obtained by the solid-liquid separation of the waste liquid of the water treatment device is sent to the cold water storage tank for storage, and the cold water storage tank is stored. The water is sent to the cold water treatment device for treatment and then sent to the cold water tank. The water in the cold water tank is sent to the water treatment device for recycling; the water obtained by solid-liquid separation of the waste liquid from the inactivation device is sent to the hot water storage tank for storage and heat. The water in the water storage tank is sent to the hot water treatment device for treatment and then sent to the hot water tank, and the water in the hot water tank is sent to the inactivation device for recycling.
  • the cold water treatment device and the hot water treatment device perform air flotation and flocculation precipitation on the water to obtain purified water having a COD value of ⁇ 200 mg/L.
  • the liquid obtained by dehydrating the cake is sent to a hot water storage tank.
  • the waste liquid produced by the inoculating device and/or the bacterial liquid preparation tank is sent to the hot water storage tank.
  • the cooling water generated during the preparation of the strain is sent to the cooling water recovery tank, and the cooling water in the cooling water recovery tank is sent to the warm water mixing tank for heating and stored in the warm water storage tank, and then the warm water storage tank is placed through the pipeline.
  • the warm water is input into the thermal insulation jacket of the bacterial liquid preparation tank to insulate the culture liquid of the bacterial liquid preparation tank.
  • the cooling water in the cooling water recovery tank is sent to the cold water tank.
  • the waste liquid generated during the oiling process is sent to an emulsified oil preparation device for circulating the emulsified oil for the oil for oil.
  • the invention also provides an apparatus for recycling and utilizing waste liquid of a herbal fiber biorefinery process, comprising:
  • a solid-liquid separation device that extracts waste liquid generated by the water treatment device and the inactivation device and performs solid-liquid separation of the waste liquid
  • a solid storage tank for receiving and storing the solid obtained by separating the solid-liquid separation device
  • a fiber recovery device that receives the extracted solids and separates the fibers in the solids
  • a fiber dewatering device for dewatering the fibers
  • a sanding device that separates the mass in the solid from the sediment
  • a block dewatering device for dehydrating the block
  • a mass packing device that packs the dehydrated mass.
  • a shower device for cleaning the fibers prior to dewatering of the fibers is also included.
  • the solid-liquid separation device comprises a first solid-liquid separation device for performing solid-liquid separation of the waste liquid of the water treatment device, the device further comprising: for storing the first solid-liquid separation device through the separation a cold water storage tank of cold water obtained by the waste liquid of the water treatment device, a cold water treatment device for treating the water in the cold water storage tank, and a cold water tank for storing the treated cold water, the cold water tank being connected to the water treatment device
  • the treated cold water may be sent to the water treatment device;
  • the solid-liquid separation device further includes a second solid-liquid separation device for performing solid-liquid separation of the waste liquid of the inactivation device, the device further comprising a hot water storage tank storing the hot water obtained by separating the waste liquid of the inactivation device, a hot water treatment device for treating the hot water in the hot water storage tank, and a storage treatment after the second solid-liquid separation device
  • a hot water tank of hot water, the hot water tank being connected to the deactivation device to deliver the treated hot water to the de
  • the solid storage tank, the hot water storage tank and the cold water storage tank are both lined with stainless steel and the bottom is in the shape of a bucket.
  • the block dewatering device is connected to the hot water storage tank to feed water generated during the dehydration process into the hot water storage tank.
  • the hot water storage tank is connected to the inoculating device and/or the bacterial liquid preparation tank to receive the waste liquid generated by the inoculating device and/or the bacterial liquid preparation tank.
  • the apparatus further comprises a cooling water recovery tank connected to the strain preparation device, a warm water preparation tank that receives and heats the water of the cooling water recovery tank, and the warm water of the tank is received and received by the warm water.
  • the stored warm water storage tank has a thermal insulation jacket, and the warm water storage tank is connected with the thermal insulation jacket to convey warm water into the thermal insulation jacket to insulate the culture liquid of the bacterial liquid preparation tank .
  • the apparatus further comprises a conveying device for conveying the waste liquid in the oil slick device into the emulsified oil mixing tank.
  • the fibers can be used for textile.
  • the pectin can be used to extract natural organic matter. Water can be directly discharged into the waters without affecting the ecological environment of the waters. Recycling, on the one hand, solves the problem of pollution in the waters, on the other hand, it makes full use of the waste liquid generated in the process of inactivation and water treatment, and realizes turning waste into treasure.
  • the separated hot water and cold water are separately stored and purified, and the purified hot water is sent to the inactivation device for recycling, and the purified cold water enters the water treatment device for recycling to prevent water and heat from being wasted.
  • FIG. 1 is a schematic view showing the structure of a waste liquid recovery and utilization device for a herb fiber biorefinery process according to an embodiment of the present invention.
  • a inoculation device b inactivation device, c water treatment device, d oil adsorption device, e emulsified oil preparation device, f strain preparation device, g bacterial solution preparation tank.
  • the herbal fiber in the present invention refers to various hemp plants such as hemp, ramie, kenaf, and fibers such as cotton fibers.
  • a large amount of fiber and pectin are produced, and the fibers and pectin are mixed in water to form waste liquid. If the waste liquid is directly discharged into the water, it will be caused. The water, fiber and pectin are wasted and cause serious pollution to the waters.
  • the method for recovering and utilizing the waste liquid of the herbal fiber bio-refining process provided by the invention is used for treating the waste liquid generated in the process of bio-refining of the herbal fiber. Includes the following steps:
  • the waste liquid of the water treatment device c and the inactivation device b is subjected to solid-liquid separation, and the obtained solid is extracted.
  • the liquid obtained by solid-liquid separation is water, and the obtained solid is fiber, mass and sediment, and the mass is mainly pectin.
  • the fibers and the masses can be separated from the waste liquid, the fibers can be used for textile, and the pectin can be used for extracting natural organic matter, and the water can be directly discharged into the waters without affecting the ecological environment of the waters. It can be recycled, so as to solve the problem of pollution in the waters on the one hand, and make full use of the waste liquid generated in the process of inactivation and water treatment on the other hand, and realize the turning of waste into treasure.
  • the fibers are washed before the fibers are dehydrated, and impurities such as sediment in the fibers are removed to obtain higher quality fibers.
  • the liquid obtained in the step (1) is sent to a treatment tank for treatment. More specifically, the solid-liquid separation of the waste liquid of the water treatment device c and the solid-liquid separation of the inactivation device b are independently performed. The water obtained by the solid-liquid separation of the waste liquid of the water treatment device c is sent to the cold water storage tank 12 for storage, and the water of the cold water storage tank 12 is sent to the cold water treatment device 13 for treatment and then sent to the cold water tank 14, and the water of the cold water tank 14 is sent. The water treatment device c is recycled.
  • the water obtained by solid-liquid separation of the waste liquid of the deactivating device b is sent to the hot water storage tank 15 for storage, and the water of the hot water storage tank 15 is sent to the hot water treatment device 16 for processing, and then sent to the hot water tank 17, the hot water tank The water of 17 is sent to the inactivation device b for recycling.
  • the cold water treatment device 13 and the hot water treatment device 16 perform air flotation and flocculation and sedimentation to obtain purified water having a COD value of ⁇ 200 mg/L, and the purified water can be recycled to improve the quality of inactivation and water treatment. .
  • the liquid obtained by dehydrating the cake is sent to the hot water storage tank 15, and the waste liquid generated by the inoculating device a and/or the liquid preparation tank g is sent to the hot water storage tank 15. Then, as described above, the water in the hot water storage tank 15 is sent to the hot water treatment device 16, and the treated hot water is sent to the hot water tank 17.
  • the cooling water generated during the preparation of the strain is sent to the cooling water recovery tank 18, and the cooling water in the cooling water recovery tank 18 is sent to the warm water mixing tank 19 to be heated and stored in the warm water storage tank 20, and then passed.
  • the pipeline heats the warm water in the warm water storage tank 20 into the thermal insulation jacket of the bacterial liquid preparation tank g to insulate the culture liquid in the bacterial liquid preparation tank g.
  • the waste liquid generated in the oil staining process is sent to the emulsified oil preparation device e for preparing the emulsified oil for the oil.
  • the invention also provides a herb fiber bio-refining process waste liquid recovery and utilization equipment, comprising: a solid-liquid separation device, a solid storage tank 3, a solid extraction device 4, a fiber recovery device 5, a fiber dewatering device 6, a fiber packing water device 7. A sanding device 8, a mass dewatering device 9, and a mass packing device 10.
  • the solid-liquid separation device extracts the waste liquid generated by the water treatment device c and the inactivation device b and performs solid-liquid separation of the waste liquid.
  • the solid-liquid separation device is a solid-liquid separation pump which is disposed on a pipe for extracting waste liquid.
  • the solid storage tank 3 receives and stores the solid obtained by the separation of the solid-liquid separation device.
  • the solids extraction device 4, in this embodiment, is a spiral solids delivery device for extracting solids within the solids storage tank 3.
  • the fiber recovery device 5 receives the extracted solids and separates the fibers therefrom from the cake.
  • the fiber dewatering device 6 dehydrates the fibers, and the fiber packing device 7 packs the dehydrated fibers.
  • the fiber recovery device 5 is a grid type fiber recovery device.
  • the sanding device 8 receives the block and removes the sediment in the block.
  • the swirling sand-sanding device 8 is used to deposit the sediment during the swirling process, thereby The blocks are separated.
  • the block dewatering device 9 dehydrates the block after the sediment removal, and the block packing device 10 packs the dehydrated cake.
  • the natural organic matter in the pectin, pectin can also be extracted.
  • the herb liquid bio-refining process waste liquid recovery and utilization device can perform solid-liquid separation on the waste liquid generated by the inactivation device b and the water treatment device c, thereby preventing pollution of the water area.
  • the invention also realizes the separation of the fibers from the sediments and the blocks, and the blocks are separated from the sediments, so that the fibers and the blocks obtained by the separation can be reused, thereby realizing the waste turning into treasure.
  • the spray device 11 for cleaning the fibers before the fibers are dehydrated is further cleaned to remove impurities such as sediment in the fibers, thereby obtaining fibers of better quality.
  • the solid-liquid separation device includes a first solid-liquid separation device 1 that performs solid-liquid separation on the waste liquid of the water treatment device c, and the device further includes a first solid liquid for storing the first solid liquid a cold water storage tank 12 for separating cold water obtained by the waste liquid of the water treatment device c, a cold water treatment device 13 for treating the water in the cold water storage tank 12, and a cold water tank 14 for storing the treated cold water,
  • the cold water tank 14 is connected to the water treatment device c to send the treated cold water to the water treatment device c.
  • the solid-liquid separation device further includes a second solid-liquid separation device 2 for performing solid-liquid separation on the waste liquid of the inactivation device b, the device further comprising: for storing the second solid-liquid separation device 2 for separation a hot water storage tank 15 for obtaining hot water obtained from the waste liquid of the living unit b, a hot water treatment device 16 for treating the hot water in the hot water storage tank 15, and a hot water tank 17 for storing the treated hot water,
  • the hot water tank 17 is connected to the deactivating device b to send the treated hot water to the deactivating device b.
  • Both the cold water treatment device 13 and the hot water treatment device 16 perform at least water purification treatment.
  • the solid storage tank 3, the hot water storage tank 15 and the cold water storage tank 12 are both lined with stainless steel and have a bottom shape in the shape of a bucket.
  • the stainless steel prevents the liquid from eroding the inner wall, and the shape of the bottom makes the solid deposit. In the bucket, it facilitates the extraction of solids and the purification of hot and cold water.
  • the block dewatering device 9 is connected to the hot water storage tank 15 to feed the water generated during the dehydration process into the hot water storage tank 15.
  • the hot water storage tank 15 is connected to the inoculating device a and/or the bacterial liquid preparation tank g to receive the waste liquid generated by the inoculating device a and/or the bacterial liquid preparation tank g.
  • the apparatus further includes a cooling water recovery tank 18 and/or a liquid preparation tank g connected to the strain preparation device f, a warm water mixing tank 19 that receives and heats the water of the cooling water recovery tank g, and receives the
  • the warm water storage tank 20 for warm water of the tank 19 is stored and stored therein, and the bacterial liquid preparation tank g has a heat insulating jacket (not shown), and the warm water storage tank 20 is connected to the heat insulating jacket to The warm water in the thermal insulation jacket is used to insulate the culture medium of the bacterial liquid preparation tank g.
  • the strain preparation device f is used for the propagation of the bacterial species
  • the bacterial liquid preparation tank g is used to dilute the bacterial species so that the bacterial species reaches a set concentration suitable for inoculation.
  • the device further comprises a conveying device for conveying the waste liquid in the oil slicking device d into the emulsified oil mixing tank, and the emulsified oil prepared by the emulsified oil mixing tank is transported to the oil slicking device d to perform the oil slick operation on the fiber, and emulsification
  • the oil circulates between the emulsified oil blending tank and the oil slicker d.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Physical Water Treatments (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

La présente invention concerne une méthode et un équipement de recyclage et d'utilisation d'un déchet liquide dans un procédé de raffinage biologique de fibres herbacées destinés à être utilisés dans le traitement d'un déchet liquide généré dans un procédé de raffinage biologique de fibres herbacées. Le procédé comprend les étapes suivantes : (1) réalisation d'une séparation solide-liquide d'un déchet liquide provenant d'un dispositif de traitement à base d'eau et d'un dispositif d'inactivation, et extraction du solide obtenu; (2) séparation et extraction des fibres provenant du solide; (3) déshydratation et compression des fibres; (4) séparation des amas de sable provenant du solide; et (5) déshydratation et compression des amas. La présente invention résout le problème technique de la pollution environnementale provoquée par le déchet liquide généré dans une procédure de production de fibre herbacée existante, et concerne un procédé et un équipement pour recycler et utiliser un déchet liquide dans un procédé de raffinage biologique de fibre herbacée.
PCT/CN2018/086424 2017-09-18 2018-05-11 Méthode et équipement de recyclage et d'utilisation de déchets liquides dans un procédé de raffinage biologique de fibres herbacées WO2019052206A1 (fr)

Applications Claiming Priority (2)

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CN201710840524.5A CN107697958B (zh) 2017-09-18 2017-09-18 一种草本纤维生物精制工艺废液回收与利用方法及设备
CN201710840524.5 2017-09-18

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107697958B (zh) * 2017-09-18 2020-08-21 大庆天之草生物新材料科技有限公司 一种草本纤维生物精制工艺废液回收与利用方法及设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897301A (en) * 1974-04-01 1975-07-29 Glatfelter Co P H Recovery of papermaking solids for reuse, with an active chlorine-bearing chemical
CN101066814A (zh) * 2007-06-08 2007-11-07 东华大学 纤维素纤维水刺非织造工艺用水处理装置及其方法
CN101155957A (zh) * 2005-03-10 2008-04-02 瑞弗尔·阿哈伦 从污水污泥回收利用纤维的方法及其装置
CN107697958A (zh) * 2017-09-18 2018-02-16 大庆天之草生物新材料科技有限公司 一种草本纤维生物精制工艺废液回收与利用方法及设备

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207435059U (zh) * 2017-09-18 2018-06-01 大庆天之草生物新材料科技有限公司 一种草本纤维生物精制工艺废液回收与利用设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897301A (en) * 1974-04-01 1975-07-29 Glatfelter Co P H Recovery of papermaking solids for reuse, with an active chlorine-bearing chemical
CN101155957A (zh) * 2005-03-10 2008-04-02 瑞弗尔·阿哈伦 从污水污泥回收利用纤维的方法及其装置
CN101066814A (zh) * 2007-06-08 2007-11-07 东华大学 纤维素纤维水刺非织造工艺用水处理装置及其方法
CN107697958A (zh) * 2017-09-18 2018-02-16 大庆天之草生物新材料科技有限公司 一种草本纤维生物精制工艺废液回收与利用方法及设备

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