Absorbing material preparation method based on amination reinforced modified straw

Abstract

The invention relates to an absorbing material preparation method based on amination reinforced modified straw. Through the special design of the technological steps of straw raw material fermentation pre-processing, cation-type modification processing, anion-type modification processing, alkalization, crosslink preparing and the like and the special optimization of relative parameters, the absorbing material preparation method solves the technical problem that through the methods like single ion modification in the prior art, an absorbing material which meets the requirement of absorbing performance is difficult to obtain, and has the advantages that straw materials are good, the absorbing quantity is large, the absorbing speed is high, the technological process cost is low, the technological operation is simple and the method is applicable to industrialized production and cannot generate secondary pollution.

Description

technical field [0001] The invention relates to the technical field of adsorption materials, in particular to a method for preparing a modified straw adsorption material, and more specifically to a method for preparing a modified straw adsorption material based on amination enhancement. Background technique [0002] At present, crop stalks are crop residues with high fiber content left after the seeds are harvested, including: cereals, beans, potatoes, oilseeds, hemp, and cotton, sugarcane, tobacco, melons and fruits, etc. crop straw. Our country is very rich in straw resources. At present, there are nearly 20 kinds of important crop straws, and the output is huge. In addition to a large amount of carbon, crop straw also contains potassium, silicon, nitrogen, calcium, magnesium, phosphorus and other elements, as well as cellulose, hemicellulose, lignin, protein and amino acids. The straws of different crops contain different components. In general, the average organic matt...

AI Technical Summary

Problems solved by technology

[0005] Chinese Patent Publication No. CN101638328A, published on February 3, 2010, discloses a kind of straw organic fertilizer and its preparation method. The process is complicated, and the degradation process is easily affected by external factors. Moreover, this method is not suitable for large-scale treatment of straw. The cultivation of adsorbents for degrading straw requires professional and technical personnel and has high requirements for the cultivation environment. It is not suitable for promotion and use in rural areas.

Rural renewable energy construction focusing on biogas and biomass energy has alleviated the shortage of energy supply in rural areas, changed the traditional mode of lighting fires and cooking in rural areas, met farmers' demand for high-grade energy, and improved farmers' lives. Quality, adapted to the development needs of modern new countryside, and can consume a large amount of crop straw at the same time, is a way to achieve large-scale straw treatment, but it is rarely used at present

[0011] (2) Straw as feed: The high crude fiber content in straw limits the digestion of dissolved matter in the cell wall by microorganisms and digestive enzymes in the rumen, resulting in poor palatability and nutrition of the straw, which cannot be efficiently absorbed and utilized by animals

[0021] There are many ways to remove heavy metal ions in water. Traditional methods include chemical precipitation, redox, ferrite, electrolysis, evaporation and concentration, and ion exchange resin. Management is troublesome, and it will produce secondary pollution and cannot solve the problems of metal and water resource reuse.