Chinese farmers have found many ways to use straw, which allows them to develop waste-free production.
Currently, the straw obtained in the fields of Chinese agricultural producers is mostly not just disposed of, but used later.
In some advanced regions, such as Liaoning Province, its utilization rate exceeds 90%, experts say.
At the same time, in this province alone, about 25 million corn, rice and other crops are produced annually, which produces many millions of tons of straw.
Its use is quite diverse. In addition to using it as fuel and biofertilizer, straw is also fed to livestock.
In addition, burning straw allows you to get cheap electricity, while having a minimal negative impact on the environment. It is also used for direct heating of residential buildings.
To simplify the use of straw, a single, orderly system for its collection, storage and transportation is currently being created in the province. More than 50 enterprises are engaged in packing straw, as well as its delivery to energy and heating companies.
An interesting innovation is the construction of an 8,000-square-meter straw-to-ash processing plant in Liaoning Province.
It is expected to burn nearly half a million tons of straw per year and produce about 100,000 tons of ash.
“This straw ash processing plant will supply the remaining ash as biofertilizer.
The company has collaborated with a number of research institutes and applied for a number of national patents for granulation and other processes related to processing straw into ash.
These processes convert straw into organic complex fertilizer, which will be returned to the fields,” said Chu Zhenqun, CEO of Huinong Biomass Thermal Power Co., Ltd.
In general, Liaoning, like many other regions of China, is now putting the use of straw on a fundamental basis.
In particular, a number of key regions that are producers and consumers of straw have been identified, and their cooperation with research centers and companies has been established, which allows for a clear path for straw from the field to the consumer.
It is noted that in some regions it has already been possible to achieve a scheme in which the straw does not leave the field at all, but is used as fuel or fertilizer right there.
This allows for a minimum reduction in transportation costs and thus an increase in the efficiency of using this type of raw material.
