Clean pulp and paper making and pollution control innovation team of Guangxi University

Wandering around the beautiful land of Baiguan, you may not know its name, but you must like the green scene and green air; You may not understand the hardships it has gone through and the achievements it has created, but in the beautiful ecology that nourishes you everywhere, there must be its pursuit, struggle and responsibility. It is our clean pulp, paper and pollution control innovation team.

Twenty years ago, in response to waste water pollution from paper mills, our clean pulp and paper and pollution control innovation team of just a few people made a pledge: Change! With the unchanged original heart, all the way persistent exploration, all the way tenacious, 20 years of "green" journey, with The Times, the sea changes. From the difficult steps then, to the great strides now. From sewage to clear, water to beautiful, to create a sustainable development of the "green ecology", they did it! This team makes the "Green Dream" take off and vows results!

Over the years, this team has focused on the needs of society, committed to the basic research of paper cleaner production and pollution treatment, the development and industrial application of key technologies and equipment, and is committed to building China's own brand. Especially in recent years, adhere to the new development concept, in-depth implementation of the 18th and 19th National Congresses of the Communist Party of China on building a beautiful China, promoting green development, putting ecological civilization construction in a prominent position of the strategic deployment, to "build a magnificent Guangxi, and jointly realize the dream of rejuvenation" as their own responsibility, It has made breakthrough achievements in the field of engineering theory and technical equipment in the field of pulp clean bleaching and papermaking wastewater treatment, provided strong technical and equipment support for the paper industry to implement the national "Water pollution prevention and control action", made outstanding contributions to promoting scientific and technological progress in the industry and optimizing and upgrading the industrial structure, and made outstanding contributions to serving the national strategy and local economic construction. Make outstanding contributions to the deep integration of production, study and research of the school. The series of research results have won more than 10 awards at the provincial and ministerial level and above, such as the second prize of National Science and Technology Progress, the second prize of National Technology Invention, the first prize of the Ministry of Education's science and Technology Progress, the first prize of the Ministry of Education's Technology invention, and the Special Prize of Guangxi Science and Technology Special Contribution.

This team, with its enterprising attitude, closely follows the "country's largest", and shows us the responsibility of hard work, collaboration and innovation and the style of The Times with vivid practice.

Hold a team research project seminar

Shoulder the responsibility of the family and the country, determined to be "first-class"

A person, a team can only be successful if the destiny is integrated into the destiny of the country.

 The development concept of the team has also evolved from the initial "small treatment" of sewage to the "big vision" of ecology, from relying on technology to "imported" to achieve independent innovation, so that the "green" business has expanded to the breadth and depth. Based on the new development stage, they consciously integrate into the scientific and technological research battlefield of national ecological civilization construction, rely on core technological advantages and continuous innovation and research and development strength, actively docking national and local development strategies, combined with Guangxi's traditional advantageous industries and ecological environmental protection advantages, and constantly optimize and refine the research direction. Focusing on the transformation and upgrading of energy saving and environmental protection industry in pulp and paper industry, clean pulping and paper making of subtropical characteristic plant resources and recycling of wastewater, efficient clean separation and application of main components of woody biomass, research on oxidative degradation of lignin and reduction mechanism of adsorbable organic chloride (AOX) in chlorine dioxide bleaching process, research and development of biomass-based functional packaging materials, Form the "upper, middle and downstream connection trinity" characteristic research system of pulping and papermaking and high-value utilization of plant resources, form the talents advantages and achievement characteristics of cross-agglomeration of chain disciplines, and build a first-class research platform for solving key scientific problems in the development process of clean pulping and papermaking and high-value utilization of biomass industry in China. It will provide a platform for international science and technology cooperation for ASEAN-oriented cooperation and lay a solid foundation for achieving self-reliance at a high level in science and technology.

MCI processing

The team is also based on reform and development, according to the development needs of disciplines, effectively integrate resources, stimulate innovation vitality, carry out interdisciplinary integration, and achieve collaborative development of disciplines. In collaboration with agriculture and forestry, chemical engineering, materials, environment, biology and other related disciplines, the formation of pollutants is controlled from the perspective of process, and the types and treatment technologies of pollutants are studied from the perspective of treatment. For the needs of paper, sugar, packaging, food and other industries, using the characteristics of raw materials required by agriculture, forestry and other relevant disciplines to conduct in-depth research. Especially in recent years, with the goal of high-value utilization of wood fiber, combined with friction nanopower generation technology, the team has actively carried out interdisciplinary and applied basic research. With Guangxi University as the first and corresponding author unit, he has published a number of representative papers in internationally renowned academic journals such as Advanced Functional Materials, American Chemical Society - Nano, Nano Energy, and Chemical Engineering Journal, and has made significant contributions to chemistry, agricultural science, materials science, environment/ecology and other disciplines listed in the top 1% of ESI global rankings.

In the face of major emergencies, give full play to scientific research and professional advantages, and demonstrate responsibility with actions. During the outbreak of COVID-19, relying on a large number of technical achievements accumulated in the efficient treatment of industrial wastewater and the preparation of chlorine dioxide, the team and the company jointly developed an emergency chlorine dioxide preparation device for disinfection in response to the needs of sterilization in public areas of hospitals and disinfection of medical wastewater. In total, it has provided more than 1,000 tons of high-purity chlorine dioxide disinfectant for organs, hospitals, universities and other units in Guangxi, Hubei, Hunan, Yunnan and other places, meeting the safe and effective sterilization needs of public places. In order to deal with the urgent need for the safe and effective treatment of medical wastewater in emergency hospitals for epidemic prevention and control, the medical sewage emergency treatment technology and integrated intelligent treatment system have been developed and used in the medical sewage treatment of eight Guangxi emergency reserve hospitals in Nanning, Liuzhou, Guilin and other places. The medical wastewater has been completely harmless treatment and blocked the transmission of the virus, playing an important role in the fight against the epidemic.

Seminar on wastewater treatment technology

"Fine" soldiers "strong" will work together to fly

On the road to scientific and technological research, creating a team of "green ecology" and "fine" soldiers "strong" will be the cornerstone of the development and growth of the team. A member of the team, Professor Qin Chengrong, dean of the School of Light Industry and Food Engineering, said: The team has always attached importance to the construction of scientific research platform and the construction of an environment for the growth of excellent talents. At the beginning of the establishment of the team, the experimental site was mainly rented, and the difficulty of fighting for more than 3 months in a rented and temporary straw hut in Hebei in the cold winter of 2004 has become a thing of the past. Nowadays, a research platform of modern equipment and facilities has been born, such as, in recent years, under the key support of the school's "double first-class" discipline construction, a large instrument and equipment sharing platform with tens of millions of yuan has been established, and the opening and sharing of large instruments and equipment has achieved remarkable results. At the same time, a future-oriented scientific talent training mechanism is constructed. For example, the team is divided into several groups according to the research direction, and the path of scientific research and growth is set according to each member's specialty and research direction, and the scientific research echelon at different levels from teachers to students is formed. Professor Tan himself is a beneficiary, he from an ordinary scientific researcher to the national key topic research host or an important participant, to enjoy the special allowance of The State Council experts, selected The State Council Degree Committee of the eighth discipline evaluation group light industry technology and engineering discipline group members, all these are inseparable from the good growth of the team. Liu Yang, secretary of the Party branch of the team who grew up in the team, said that the team integrated the party building into scientific research and daily work, everyone thought unified, and fought for excellence with hard work and innovation, forming a good atmosphere of "geese flying together". The branch has also won honors such as the National model branch of Party building work, the five-star Party organization of the Education and Work Committee of the Autonomous Region Party Committee, and the five-star Party branch of Guangxi University.

Team members discuss relevant issues encountered in the research

As a self-trained "master and doctoral" continuous student, Professor Nie Shuangxi has also thrived in this team, and has won the National Technology Invention Award, the Ministry of Education Huo Yingdong Young Teachers Award, the Ministry of Education Technology Invention Award, Guangxi Innovation Award, Guangxi Youth Science and Technology Award and other awards. He said that the team "pattern is large", from the beginning, the mentor guided everyone to keep an eye on the frontier, cultivate international consciousness and first-class consciousness, and each member was promptly sent to advanced universities at home and abroad for further study. Whenever we carry out a subject research, the tutor will say "failure is mine, success is everyone's" so that we can emancipate our minds and explore boldly, so we grow faster and achieve more results. Professor Zeng Lintao is a high-level talent newly introduced from Tianjin University of Technology in 2020. He said: "Team spirit" is one of the important factors that attracted me to this team. At that time, there was another good university to extend an olive branch to me, but I chose Guangxi University without hesitation. Before I came to work in the team, the team sent someone to ask for my opinions and suggestions on research, which made me feel the sincerity and importance of the team. Moreover, the teachers are dedicated to their work and cooperate with each other to solve scientific research problems together. No matter which teacher or student encounters scientific research difficulties, any member of the team will voluntarily help solve them. Here everyone is conscious of responsibility, no one cares about personal gains and losses, no matter how tired can not hear who complains, the various laboratories are brightly lit before 12 o 'clock in the night. Zhang Jian said that I followed my supervisor to participate in major scientific research projects as soon as I was a graduate student, and my supervisor never blamed me for making mistakes, but patiently guided me. Moreover, the tutor attached great importance to each of our students. For a student's paper, the tutor led the team to repeatedly and carefully discuss and revise it, and often worked late into the night. I felt warm and energetic in this team. Teacher Liang Chen joked that our team is committed to the "ecological" environment, and the team itself is also very "ecological". In addition to work, we also set up a badminton team to play once a week, and usually exercise by ourselves in twos and threes. After work, we often "about walking" and "about chatting", the atmosphere is particularly good, and everyone is very happy in this team.

Pulp bleaching pilot test

In recent years, the team has continued to grow, from the initial few young teachers to now has more than 40 industry research elites and more than 1,000 professional backbones in related fields, aspiring young people. At the same time, it has brought together a group of highly educated technical leaders with overseas study background to form a high-quality technical innovation team. At present, the team has 43 fixed scientific research members, including 76.5% party members, 13 people have senior titles, and 95.3% have doctoral degrees. The team has also undertaken the first small industrialization project of tens of thousands of yuan for the wastewater treatment of Guangxi Nandang Paper industry to undertake national key research topics of tens of millions of yuan today. At present, 65 research projects are under research, including 15 national projects such as the National Natural Science Foundation, 32 provincial and ministerial projects, and 18 horizontal and other projects within the plan.

In addition, the team relies on the Bosch branch of the Graduate School of Guangxi University, complementing each other's advantages, using the enterprise's technology center and engineering experiment platform to carry out relevant research topics under the guidance of enterprise technicians, and cultivate application-oriented talents in the industry.

No matter how difficult it is, no matter how it develops, the team spirit of harboring home and country, sharing weal and woe, tenacious tackling and advancing together in the past 20 years has always remained unchanged, and has always been a high flag of the team's journey forward, constantly inspiring the team to forge ahead on the road of scientific research in the new era.

Wastewater treatment

"Vigorous" green, innovative leadership

Upholding the responsibility all the way, riding the east wind of the vigorous development of national ecological civilization construction, infiltrating the good team ecology, the team's scientific research achievements continue to achieve new breakthroughs, and the team continues to thrive as the "green" leader.

Creatively developed key technologies and core equipment such as upflow multistage anaerobic reactor and granular sludge calcification inhibition technology, realized the localization of core technologies and key equipment for organic wastewater treatment in papermaking and fermentation industries, fought for 10 years, and successfully developed "key technologies and applications for recycling and ultra-low emission of typical papermaking and fermentation wastewater". It has completely ended the era when foreign enterprises relied on technology monopoly for 30 years to make high profits. The achievement won the second prize of the 2016 National Science and Technology Progress Award. At present, it is continuously promoting industrial application, and more than 100 projects have been promoted in China, Russia, Belarus, Myanmar, India and other countries and regions.

Overcoming the problems of unstable operation of the traditional synthetic chlorine dioxide preparation system, high chlorine content in the product, and high oxygen content in the hydrogen generated by electrolysis, a stable and efficient synthetic chlorine dioxide preparation technology without solid formation was developed, and the chlorine dioxide generation efficiency was increased from 90.0% to 93.5%. The conversion rate of sodium chlorate increased from 95% to more than 97% by solving the problems of low conversion rate of sodium chlorate by traditional methanol reduction method, high content of chlorine gas in products and difficult utilization of by-products as resources. Invented high temperature chlorine dioxide bleaching and chlorine dioxide preparation technology and equipment system based on inhibiting AOX generation, solved the "jam neck" technical problem of clean bleaching in China, completely broke the monopoly of technology and equipment in Canada and other countries, and has been applied in nearly 30 enterprises at home and abroad, such as the world's top ten papermaking enterprises APP Group, to achieve AOX ultra-low emissions. The series of achievements won the second prize of National Technological Invention in 2019. This award is the only national technological invention second prize in Guangxi so far.

Based on the key technology of liquid-solid one-step complete transformation of heterogeneous chemical reaction, the amphoteric lentil cellulose adsorption material with multiple adsorption sites, high density and equilibrium was developed to solve the problem that low concentration of heavy metal ions in water is difficult to remove efficiently. At present, it has been applied in more than 40 heavy metal polluted water bodies, sediment and mining soil remediation projects in China, which has improved the equipment technology and industrialization level of heavy metal soil remediation in China, and achieved good social, ecological environment and economic benefits.

The team participates in academic conferences to discuss research programs

High value modification technologies such as plasma-enhanced chemical vapor deposition, 3D printing, microencapsulation, layer self-assembly and particle emulsification are adopted to explore the mechanical enhancement, high barrier property, optical and antibacterial functions of fiber wipes, and systematically develop a series of bio-based functional packaging materials. Such as polylactic acid high barrier type, anti-migration type, super hydrophobic type and structural color functional composite materials, chlorine dioxide microcapsules and antibacterial, antioxidant and other natural active substances microcapsule based fillers/coatings, as well as nanocellulosic high barrier coating, thermal insulation buffer foam, 3D printing containers, active antibacterial film and intelligent indicator labels and other functional biomass packaging materials.

A series of important achievements have been made in the engineering key technology and equipment of large-scale chlorine dioxide preparation, the engineering key technology of multi-strengthening elemental chlorine bleaching, and the engineering technology of efficient anaerobic treatment and resource utilization of high concentration organic wastewater, and the industrial application has been realized. Among them, 10 core invention patents have been transformed in the fields of chlorine dioxide preparation, clean bleaching, and paper waste water treatment, with a transfer amount of more than 10 million yuan.

In 2018, relying on the scientific and technological achievements of the team, the joint enterprise successfully made the 14 internal lakes of the school become cloudy and clear, adding a beautiful scenery for the construction of ecological civilization of the campus, creating another green ecology of sustainable development, making the school present the 90th anniversary of the founding of the school with a new look, and once again highlighting the modern level of the ecological management ability of the team.