Material biological degradability detection evaluation equipment and method

Abstract

The invention provides material biological compost degradability detection evaluation equipment and a material biological compost degradability detection evaluation method. The equipment comprises an air supply and purification system, an air flow control system, a compost reaction system, a temperature control system and a CO2 absorption system which are arranged in sequence, wherein the air supply and purification system comprises an air compressor, a suck-back preventing bottle, an air purification bottle, a pressure maintaining valve, a pressure regulating valve and an electromagnetic valve, connected in sequence; the air flow control system comprises a flow control device; the compost reaction system comprises a humidification bottle and a compost reaction bottle; the CO2 absorption system comprises a condensation bottle and a CO2 absorption bottle. The equipment and the method have the benefits that inorganic carbon dissolved in the CO2 absorption bottle can be detected periodically through a potentiometric titration method to be taken as the accumulated CO2 emission capacity generated by the compost reaction bottle, and the method is simple and accurate.

Description

technical field [0001] The invention belongs to the detection and evaluation of the biodegradable material industry, and relates to a professional detection device and an evaluation method for biomaterial composting degradation. Background technique [0002] Biodegradable plastic is a material with low environmental load, and a considerable part of the raw material comes from renewable agricultural resources. It can be used as a supplement to non-renewable petroleum resources to reduce white pollution. It has become a research hotspot attracting global attention and is widely used in disposable tableware. , packaging, agricultural and forestry products (such as agricultural mulch, flower pots, cultivation bags, etc.), biomedical materials and household appliances and other fields. my country is an early researcher in the field of biodegradable plastics and is at the forefront of the country. Biodegradable plastics such as starch-based plastics, polylactic acid (PLA), and pol...

AI Technical Summary

Problems solved by technology

[0005] Neither of the degradation devices involved in the above two patents has any effect on the CO in the air. 2 Purify the CO in the air 2 CO produced by the composting process 2 No hair distinction, CO generated during the composting process 2 Impossible to measure accurately, resulting in inaccurate biodegradation results

In addition, the above two devices do not mention the specific technical requirements of the composting reactor, and there is no humidification and condensation device, which cannot guarantee that the degradation will be carried out under suitable humidity conditions, and cannot meet ISO 14855-1, ASTM D 6400, EN 13432, GB / T 19277.1 and other standards for biocompost degradation test requirements

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