CN105692849A

CN105692849A - Fiber coupling coagulant prepared from brewer's grains

Info

Publication number: CN105692849A
Application number: CN201610110204.XA
Authority: CN
Inventors: 谭娟; 李靓; 李雪
Original assignee: University of Jinan
Current assignee: University of Jinan
Priority date: 2016-02-29
Filing date: 2016-02-29
Publication date: 2016-06-22

Abstract

The invention belongs to the technical field of environmental protection, and relates to an environment-friendly polymeric fiber coupling coagulant. The fiber coupling coagulant is prepared from, by mass, 60%-70% of alcohol-alkali filter residues of brewer's grains, 18%-32% of alcohol-alkali filtrate of the brewer's grains, 5%-7% of an etherifying agent and 3%-5% of a catalyst. Through development of the fiber coupling coagulant, not only can the active ingredients in the brewer's grains be fully extracted, but also a novel water treatment chemical is supplied to the current wastewater treatment field when the fiber coupling coagulant is applied to industrial wastewater treatment. The fiber coupling coagulant takes the brewer's grains as the main raw material, is excellent in product property and good in stability and can generate the good coagulation effect on multiple harmful substances in industrial wastewater due to the fact that the brewer's grains are adopted as a carrier. By preparing the coagulant from the brewer's grains, not only is the environmental pollution problem solved, but also beneficial technical support is supplied to the water treatment field.

Description

Fiber coupling coagulant prepared by a kind of distiller's grains of beer

Technical field

Patent of the present invention belongs to environmental technology field, is specifically related to utilize distiller's grains of beer to prepare fiber coupling coagulant for raw material。

Background technology

Distiller's grains of beer are one of main garbages that brewing produces, and are with Fructus Hordei Vulgaris for raw material, residue after soluble-carbohydrate in fermented extraction seed, constitute about the 1/4 of medicated beer total output。Fresh beer vinasse mainly contains the materials such as moisture, crude protein, crude fat, crude fibre。Within 2008, Chinese beer total output breaks through 40,000,000 kilolitres, and yield occupies the first in the world in continuous 7 years。Along with being continuously increased of beer production, the distiller grains in Process of Beer Brewing increase sharply。At present, if wet grain is directly undersold by factory owner as roughage, its income is very micro-, and what have is then wet grain directly discharged, and not only causes serious environmental pollution, also results in the waste of resource。For this, increasing research worker focuses more on how reasonable development and application distiller's grains of beer。

The chemical composition of distiller's grains of beer is the effective ingredient of synthetic fibers coupling coagulant, utilize distiller's grains of beer to prepare fiber coupling coagulant and can make full use of the active component of distiller's grains of beer self, play the composition advantage of distiller's grains of beer to greatest extent, for processing industrial wastewater, reach the purpose of the treatment of wastes with processes of wastes against one another, improve the comprehensive utilization of resources level of distiller's grains of beer。

Summary of the invention

For solving the problem of complex utilization of distiller's grains of beer, the invention provides a kind of fiber coupling coagulant prepared with distiller's grains of beer for raw material。

The present invention utilizes distiller's grains of beer to prepare fiber coupling coagulant。Distiller's grains of beer after drying are pulverized, first soaks in methanol and potassium hydroxide mixed solution, heat certain time, it is thus achieved that filtrate, filtering residue are standby；Then catalyst, etherifying agent, filtrate and filtering residue are injected reacting by heating certain time in hydrothermal synthesis reaction still, be cooled to room temperature, filtering reacting liquid body concentrating and precipitating, dry precipitate and namely prepare fiber coupling coagulant。Fiber coupling coagulant is distiller's grains of beer alcohol alkali filtering residue 60-70%, distiller's grains of beer alcohol alkali filtrate 18-32%, etherifying agent 5-7%, catalyst 3-5% by each Ingredient percent。

Utilize distiller's grains of beer to prepare fiber coupling coagulant, be possible not only to the active component fully extracting in distiller's grains of beer, and be applied to process industrial wastewater, also provide novel water-treatment medicament for current field of waste water treatment。Fiber coupling coagulant is with distiller's grains of beer for primary raw material, and not only properties of product are excellent, good stability, and is that carrier makes the coagulant of preparation all can produce good coagulation effect for the multiple harmful substances in industrial wastewater owing to adopting distiller's grains of beer。Distiller's grains of beer are prepared fiber coupling coagulant and are not only solved problem of environmental pollution, and provide favourable technical support for water treatment field。

Detailed description of the invention

Embodiment one:

Learning from else's experience the distiller's grains of beer dried after grinding, soak in the mixed solution of the 3.0mol/L methanol that volume ratio is 2:1 and 2.0mol/L potassium hydroxide, heating, to 45 DEG C, takes the filtrate of supernatant liquid, filtering residue standby after 5h；Then by catalyst APG, etherifying agent aminoguanidine hydrochloride leucoaurin, filtrate and filtering residue according to mass percent respectively 3%, 5%, 32%, 60% ratio inject in hydrothermal synthesis reaction still to heat to 100 DEG C and react 3h, it is cooled to room temperature, filtering reacting liquid body concentrating and precipitating, dry precipitate at 45 DEG C and namely obtain fiber coupling coagulant solid。

Embodiment two:

Learning from else's experience the distiller's grains of beer dried after grinding, soak in the mixed solution of the 3.5mol/L methanol that volume ratio is 1:2 and 1.5mol/L potassium hydroxide, heating, to 50 DEG C, takes the filtrate of supernatant liquid, filtering residue standby after 7h；Then by catalyst APG, etherifying agent aminoguanidine hydrochloride leucoaurin, filtrate and filtering residue according to mass percent respectively 4%, 6%, 25%, 65% ratio inject in hydrothermal synthesis reaction still to heat to 105 DEG C and react 4h, it is cooled to room temperature, filtering reacting liquid body concentrating and precipitating, dry precipitate at 50 DEG C and namely obtain fiber coupling coagulant solid。

Embodiment three:

Learning from else's experience the distiller's grains of beer dried after grinding, soak in the mixed solution of the 2.5mol/L methanol that volume ratio is 2:3 and 2.5mol/L potassium hydroxide, heating, to 55 DEG C, takes the filtrate of supernatant liquid, filtering residue standby after 9h；Then by catalyst APG, etherifying agent aminoguanidine hydrochloride leucoaurin, filtrate and filtering residue according to mass percent respectively 5%, 7%, 18%, 70% ratio inject in hydrothermal synthesis reaction still to heat to 110 DEG C and react 3.5h, it is cooled to room temperature, filtering reacting liquid body concentrating and precipitating, dry precipitate at 55 DEG C and namely obtain fiber coupling coagulant solid。

Claims

1. the fiber coupling coagulant prepared for raw material with distiller's grains of beer, it is characterised in that: by mass percentage distiller's grains of beer alcohol alkali filtering residue 60-70%, distiller's grains of beer alcohol alkali filtrate 18-32%, etherifying agent 5-7%, catalyst 3-5%。

2. the fiber coupling coagulant prepared for raw material with distiller's grains of beer according to right 1, it is characterised in that: the bulk that distiller's grains of beer alcohol alkali filtrate, distiller's grains of beer alcohol alkali filtering residue all adopt is natural beer grain, etherifying agent be aminoguanidine hydrochloride leucoaurin, catalyst is APG。