A kind of biodegradable slow-release carbon source filler and preparation method thereof

A slow-release carbon source, biodegradation technology, applied in chemical instruments and methods, biological water/sewage treatment, water pollutants, etc., can solve the problems of unfavorable microbial adhesion, small specific surface area, single nutrition, etc., and achieve excellent physiological inertness , The effect of improving the specific surface area and good flexibility
CN107935202BActive Publication Date: 2020-02-11湖南长宏新能源材料有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
湖南长宏新能源材料有限责任公司
Publication Date
2020-02-11

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Abstract

The invention discloses a biodegradable slow-release carbon source filler and a preparation method thereof, and belongs to the technical field of sewage treatment. The biodegradable slow-release carbon source filler comprises an external carbon source layer, an internal carbon source layer and a connecting colloid. The external carbon source layer mainly includes a biodegradable polymer, starch, and an emulsifier; the internal carbon source layer mainly includes agar powder, oat bran powder, a microbial nutrient, xanthan gum, and trehalose; and the connecting colloid mainly includes carbon nanotubes, polyvinylpyrrolidone and methyl cellulose. Based on the traditional method of blending the starch and the biodegradable polymer as a basic system to prepare a sustained release carbon source,an external carbon source is made into powder, and an internal carbon source is wrapped by multiple layers of connecting colloid. The biodegradable slow-release carbon source filler has good mechanical strength, stable carbon release rate, and high carbon source quality, and can provide a stable carbon source and growth metabolism site for microbial denitrification.
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Description

technical field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a biodegradable slow-release carbon source filler and a preparation method thereof. Background technique

[0002] Studies have shown that insufficient or unstable supply of carbon sources has become an important factor restricting the efficiency of biological nitrogen removal, and sufficient carbon sources can provide sufficient nutrient sources for the growth and metabolism of microorganisms. Therefore, solving the problem of low nitrogen removal efficiency by adding carbon sources has gradually become a research hotspot in the field of water treatment.

[0003] According to research reports on carbon source supplementation, liquid carbon sources are more mature and most widely used, such as methanol, ethanol, glucose and other short-chain organic carbon, but their high cost, toxicity, uncertain dosage and transportation Difficulties and other issues have a...

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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