Unlock instant, AI-driven research and patent intelligence for your innovation.

Treatment technology and system of apricot kernel debitterizing wastewater

A technology of treatment process and treatment system, applied in the field of almond debitterization wastewater treatment, can solve the problems that almond debitterization wastewater is difficult to meet the discharge standard, endanger the water source and the surrounding environment, etc., to avoid adverse effects, improve wastewater quality, and ensure stability. Effect

Inactive Publication Date: 2018-11-23
秦皇岛格瑞因环境工程有限公司
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the fact that amygdalin is easily soluble in boiling water, high-temperature cooking is usually used in industry to remove bitterness. This process is also accompanied by the dissolution of a large amount of protein, fat, and carbohydrates, resulting in a large amount of toxic and high-concentration organic wastewater. This type of wastewater directly harms The water source and the surrounding environment must be strictly treated before discharge. However, it is difficult to meet the discharge standard for the treatment of almond debittering wastewater by the relatively mature sewage treatment process.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Treatment technology and system of apricot kernel debitterizing wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment relates to a process for treating almond debittering wastewater.

[0036] The treatment process can be figure 1 As shown in the almond debittering wastewater treatment system, the treatment system includes an aeration adjustment tank 2, a decyanation reaction device 3, an air flotation device 4, a water pump 5, a UASB reactor 6, and a biological system connected in series from upstream to downstream. The reaction tank group and the filtering device 19; the biological reaction tank group includes a first-level hydrolysis tank 7, a first-level sedimentation tank 8, a first-level aerobic tank 10, a second-level sedimentation tank 11, and a second-level hydrolysis tank 13, which are connected in series in sequence. The three-stage sedimentation tank 14, and the second-stage aerobic tank 16, the fourth-stage sedimentation tank 17; between the first-level hydrolysis tank 7 and the first-level sedimentation tank 8, a first-level sludge return device 9 is provided....

Embodiment 11

[0041] Almond debittering wastewater from Chengde Asia-Europe Nuts Co., Ltd. has a COD of 20000mg / L, BOD 5 8000mg / L, SS is 1800mg / L, wastewater contains a lot of cyanide (cyanide content is 30~75mg / L), high concentration of organic pollutants, ammonia nitrogen, suspended impurities, etc. The wastewater is treated by the following process;

[0042] The wastewater can be intercepted and filtered through a simple grille to remove the large-particle pollutants in the wastewater, and then the following treatment processes are carried out in sequence:

[0043] a. Removal of hydrocyanic acid: Use calcium hydroxide to adjust the pH of the almond debittering wastewater to 8, and reduce the amount of the almond debittering wastewater to be treated to 300m 3 / d flow into the decyanation tank, and then the aeration rate is 3L / m 2 ·Under s conditions, carry out aeration stripping treatment on wastewater, and collect the stripped gas and transport it to the UV waste gas treatment device for treatm...

Embodiment 12

[0058] The almond debittering wastewater from Chengde bitter almond processing has a COD of 12000mg / L and SS of 3500mg / L. The pollutants are mainly wastewater from cooking and pickling processes in the production and processing process, mainly high-concentration organic matter and cyanide (cyanide). The chemical content is 30~75mg / L), the treatment is difficult, and the wastewater is treated by the following process;

[0059] The wastewater can be intercepted and filtered by a simple grid. After the two-stage grid filtration (coarse grid, fine grid) removes the large-particle pollutants in the wastewater, the following treatment procedures are carried out in sequence:

[0060] a. Removal of hydrocyanic acid: take the apricot debittering wastewater to be treated to 400m 3 The flow rate of / d is first introduced to the whole underground aeration adjustment tank, the effluent is elevated into the pH adjustment tank, alkali (calcium hydroxide) is added to adjust the pH of the wastewater...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a treatment technology of apricot kernel debitterizing wastewater. The treatment technology comprises the following steps: introducing apricot kernel debitterizing wastewater to be treated into a decyanation unit and removing hydrocyanic acid; after discharging water, carrying out flocculation treatment in an air floating device; then conveying the water into a UASB (UpflowAnaerobic Sludge Blanket) reactor and carrying out anaerobic reaction; then conveying the water into a biological reaction tank group and carrying out biological degradation; finally, enabling the water to pass through a filtering unit to obtain output water which meets discharge standards of pollutants for municipal wastewater treatment plants. The treatment technology of the apricot kernel debitterizing wastewater is further combined with a treatment system to use, and efficient management of apricot kernel debitterizing wastewater pollutants is finished; the water quality of the treated wastewater is improved and the stability of the output water is ensured; the output water meets the discharge standards of pollutants for municipal wastewater treatment plant; the treatment technology of the apricot kernel debitterizing wastewater, disclosed by the invention, has remarkable economic and environment-friendly meaning.

Description

Technical field [0001] The invention relates to the technical field of almond debittering wastewater treatment, in particular to a treatment process for almond debittering wastewater and a treatment system used in the treatment process. Background technique [0002] Almonds contain about 50% fatty oil and rich flavonoids and polyphenols, which can relieve cough and asthma, nourish and beautify the skin, reduce the risk of heart disease and many chronic diseases, and prevent tumors, so it has high nutrition. Value and medicinal value. Since almonds also contain about 4% amygdalin, amygdalin can be decomposed to produce benzaldehyde and hydrocyanic acid under the action of the coexisting amygdalin enzyme and prunus leaf enzyme, and hydrocyanic acid is a highly toxic substance. Almonds must undergo debittering treatment before being deeply processed into various foods. In view of the fact that amygdalin is easily soluble in boiling water, high-temperature cooking is usually used i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/32
CPCC02F9/00C02F1/001C02F1/20C02F1/24C02F1/5245C02F1/56C02F1/66C02F3/2846C02F3/30C02F2001/007C02F2103/32C02F2301/08
Inventor 吴举陈强冉光阳
Owner 秦皇岛格瑞因环境工程有限公司