Biological modified straw adsorbent, and reparation method and application thereof

A biological modification and adsorbent technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of high cost of chemical modification, secondary pollution, etc., and achieve excellent adsorption performance and easy operation The effect of convenience and simple production process
CN102847516AInactive Publication Date: 2013-01-02JIAXING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIAXING UNIV
Publication Date
2013-01-02
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention discloses a biological modified straw adsorbent, and a preparation method and application thereof. The method comprises the steps of: crushing the straw to prepare a straw powder; mixing the straw powder with a synergistic agent and water, and inoculating microbial strain for modification to conduct fermentation; and after the fermentation, taking out the modified straw powder and drying to prepare the adsorbent. The microbial strain is Trichoderma viride CGMCC3.5455, Trichoderma koningii CGMCC3.2774, Aspergillus niger CGMCC3.4309, Rhizopus stolonifer CICC40317, and Trichoderma koningii CICC 40108. The invention uses straw powder as a carbon source to conduct solid fermentation, so as to produce the adsorbent. The production process does not produce wastewater, waste gas or waste residue, and is energy-saving and environment-friendly. The prepared adsorbent has strong capacity, and can be used for treatment of tanning wastewater and dyeing wastewater.
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Description

technical field

[0001] The invention belongs to the technical field of straw reuse, and in particular relates to a biologically modified straw adsorbent and a preparation method and application thereof. Background technique

[0002] The theoretical crop straw resources in my country are 820 million tons, of which 31.31% are discarded or burned on site. The resource utilization of straw has a long history in our country, but at present, there are few ways of high-value utilization, and the proportion is relatively low. Establish a new technology for efficient resource utilization of straw and develop new high-value straw products. It is the trend and development direction of changing the status quo of straw utilization.

[0003] Straw is mainly composed of lignin, cellulose and hemicellulose, with complex structure, good stability, and high specific surface area, which has the development potential of excellent adsorbent. It is currently known that, for example, wheat straw...

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
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