On the 20th of this month, a set of environmental protection equipment put into production by Zhejiang Jinguo Environmental Protection Technology Co., Ltd. attracted dozens of domestic and foreign scholars, entrepreneurs, and technical leaders of domestic listed environmental protection companies to visit.
What kind of equipment is so attractive? It turned out that the biomass pyrolysis carbonization technology of this equipment can "burn" wastes such as sludge, pig manure, and straw into biomass charcoal, realizing the "black to green" transformation of waste treatment and sustainable soil management.
The foreigner asks this and asks that is as curious as a student
On the 20th, the "Sewage Sludge Stabilization, Harmlessness, Reduction, and Resource Disposal Project" designed and manufactured by Jinguo Environmental Protection for Quzhou Chengdong Sewage Treatment Plant was officially launched. In the morning, dozens of international scholars and entrepreneurs who were participating in the 2nd China-ASEAN International Exchange Training Conference on Biomass Carbon Production and Green Agriculture Application in Nanjing arrived at the scene under the drizzle.
After listening to a brief introduction, scholars including Thomas R. Miles, chairman of the International Biochar Association, went around the "rotary drying and pyrolysis carbonization kiln" and asked the technicians from time to time. Grab a handful of biomass charcoal "burned" from domestic sludge and look and smell it.

According to experts, with the continuous improvement of my country's sewage treatment rate, water pollution treatment has achieved remarkable results, but the product of sewage treatment --- sludge has been ignored. At present, my country's sludge treatment method is still dominated by landfills. However, since the water content of sludge is as high as 80%, it is not only large in volume but also fluid. If it is not handled properly, it is prone to secondary pollution such as permeate pollution, water source pollution, and soil damage.
"After being carbonized by rotary drying and pyrolysis carbonization kilns, the sludge can be turned into biomass charcoal, which can be used to produce carbon-based fertilizers, soil amendments, garden planting substrates, and filter adsorption materials, which truly achieves stabilization and reduction , Harmless, resource-based disposal." Lv Houming, chairman of Zhejiang Jinguo Environmental Technology Co., Ltd., introduced.
The technical leaders of domestic listed environmental protection companies and the leaders of water companies in many places also came to the scene. Qi Jihong, chief expert and senior engineer of Anhui Guozhen Environmental Protection and Energy Conservation Technology Co., Ltd., told reporters that the State Council released the "Soil Pollution Prevention and Control Action Plan" last year. The disposal of sludge "four modernizations" will become more and more stringent. Guozhen Environmental Protection is a listed company. , It operates more than 300 sewage treatment plants and urgently needs technology for the harmless and resource-based disposal of sludge. The solutions provided by Jinguo Environmental Protection are undoubtedly eye-catching.
Two listed companies throw olive branches to the golden pot
After finishing the trip in Quzhou, the group rushed to the Jinhua Biomass Industry Science and Technology Research Institute in Qianpoqiao Village, Caozhai Town, Jindong District, Jindong District. Here, a "pig manure drying and carbonization integrated machine" turns pig manure into biomass charcoal. The reporter smelled the charcoal made from pig dung and didn't smell a trace of foul smell.
Lv Houming introduced that biomass pyrolysis eliminates all drug residues, antibiotics, and pathogenic bacteria in pig manure through high temperature, and inactivates heavy metals. There is no chemical reaction in the process, and the original biomass structure in pig manure can be completely maintained. This structure has voids that can hold water and adsorb nutrients. Therefore, the carbon-based fertilizer made from pig manure can enrich the soil with more nutrients and bring higher nutritional value to the crop.

In recent years, Jin Guo Environmental Protection has actively "introduced wisdom" to seek industrial upgrading, and has stepped into the field of high-end environmental protection equipment manufacturing. Introduced by Jinguo Environmental Protection, Jindong District Government, Nanjing Agricultural University and Jinhua Vocational and Technical College jointly established Jinhua Biomass Industry Science and Technology Research Institute. The research institute includes a group of technical experts, with Chen Yong, academician of the Chinese Academy of Engineering, as the chief consultant, my country’s academic authority in the field of carbonization, and Professor Pan Genxing, the director of the Institute of Agricultural Resources and Ecological Environment of Nanjing Agricultural University, as the chief scientist. With the strong support of the Science and Technology Bureau, the Institute is committed to the research and development of technologies, equipment and products for the carbonization and recycling of biomass waste, pilot production and agricultural demonstration applications, and innovations in various agricultural and urban domestic waste safety, low-carbon, and green Circular processing solution.
"On the one hand, sludge, animal husbandry manure, and agricultural waste are increasing. On the other hand, the concept of environmental protection is gradually gaining popularity. The requirements for sludge disposal are getting higher and higher, and the carbonization of biomass wastes has become industrialized. The two listed companies, Ju Environmental Protection and Guozhen Environmental Protection, have begun to cooperate with us. This year, they sold more than 10 million yuan in environmental protection equipment, and next year is expected to be nearly 100 million yuan." Lu Houming told reporters that the company's technology and equipment can not only realize waste resource utilization, And it also has a higher cost performance. Using the combustible gas produced by waste wood, biomass fuel, as the heat source for incineration, the cost of treating one ton of sludge is about 200 yuan, and the government subsidy for sewage treatment plant sludge treatment is about 300 yuan per ton, and Guangdong Province reaches 400. Yuan / ton. This means that light treatment of sludge can be profitable, and the produced biomass charcoal also has a high market value.

Jin Guo breaks into the blue ocean of biomass charcoal
Qi Jihong told reporters that with the implementation of the "Soil Pollution Prevention and Control Action Plan", soil health and soil remediation have been pushed to an unprecedented height. According to data from the "Analysis Report on Market Prospects and Investment Strategic Planning of China's Soil Remediation Industry", the soil remediation industry will be the environmental protection sub-industry with the largest development potential during the "13th Five-Year Plan" period, with a market space of up to 4.6 trillion yuan. If Jinhua City can seize the strong support of a group of enterprises such as Jinguo Environmental Protection, it will produce a new industry exceeding 100 billion yuan. At present, Guozhen Environmental Protection and Jinguo Environmental Protection have launched comprehensive cooperation across the country.
"Biochar can be used as carbon-based fertilizer, soil heavy metal repair agent, metallurgical reducing agent and fertilizer slow-release material. It has a very good effect on improving soil, improving soil acidification and compaction and maintaining fertilizer, and has huge application prospects." Pan Genxing Said that at this international exchange and training meeting, scholars from the United States, the United Kingdom, Australia, Spain, Thailand and other countries agreed that there has been a global trend of industrialization of waste treatment based on pyrolysis biomass charcoal and green production of agricultural products. Especially in China, the pyrolysis of biomass charcoal from straw biomass and its application in soil improvement, fertilizer replacement and biomass energy utilization have been vigorously promoted by the country.
The application prospect of biomass charcoal is favored by more and more enterprises. "As long as it is biomass charcoal, I want as much as there is." At the Jinhua Biomass Industry Science and Technology Research Institute, Sun Xiaogui, the technical director of Zhongcheng Carbon-based Industrial, expressed his extreme desire for biomass charcoal. He told reporters that the carbon-based fertilizer made from biochar is currently a high-quality, clean fertilizer, which can not only promote crop growth, but also reduce soil problems and pests. Therefore, as a state-owned enterprise, the company is vigorously promoting carbon-based fertilizers, aiming to create a "carbon-based fertilizer organic fruit brand" and open up the downstream industry chain of biomass charcoal.
Expert perspective
Chen Yong, academician of Guangzhou Institute of Energy Research, Chinese Academy of Sciences and Chinese Academy of Engineering:The practice of Jinhua Biomass Industry Science and Technology Research Institute and Jinguo Environmental Protection is expected to realize the upgrading of biomass gasification technology and complete equipment, enhance the international market competitiveness of my country’s biomass gasification equipment, and promote my country’s renewable energy technology in Southeast Asia, etc. The application of the "Belt and Road" countries has achieved a win-win situation, which is conducive to exploring the path and new mode of international transfer and transformation of my country's scientific and technological achievements.
Thomas R. Miles, Chairman of the International Biochar Association:
Now, the whole world is exploring how to better dispose of more and more waste. The International Biochar Association is an organization that allows more people to know and understand the application of biomass charcoal. This time I saw a new equipment and new technology in Jinguo Environmental Protection, which converts local waste into energy and realizes recycling. I am very happy. This shows that China's biomass carbon industrialization is developing very fast. What is even more surprising is that China has stronger policies to promote, and Chinese companies have such high industrialization efficiency and lower industrialization costs.
Pan Genxing, Director of the Institute of Agricultural Resources and Ecological Environment, Nanjing Agricultural University:
Driven by the national green development strategy, our country’s biomass technology and industrial routes have become increasingly mature. Compared with foreign countries, the domestic industrialization level and applied research have reached the international lead, and it has promoted the rapid development of basic research. I have been engaged in biomass pyrolysis research for 15 years. In 2014, I adopted the "Shuanglong Project" policy for attracting talents, connecting with the Golden Pot Environmental Protection, which is good at biomass boilers, pyrolysis technology, and intends to develop environmental protection equipment. I am from Pujiang, and I prefer to cooperate with Jinhua enterprises to apply my research results to actual production and return to my hometown.

Text/Photo by our reporter Chen Haoyang/Yu Lianqun