中文
EnglishThe resource-based disposal and efficient utilization of bulk industrial solid waste is a core environmental challenge that urgently needs to be addressed in China’s industrial green transformation, as well as a key approach to advancing the construction of “Zero-Waste Cities” and establishing a circular economy system.
Adopting diversified technical approaches including raw material recycling and remanufacturing, intensive processing and reuse, solid waste transformation and utilization, and waste resource exchange, the project extracts effective components from various industrial solid wastes or converts them into reusable raw materials, energy and industrial auxiliary materials. It reduces pollution caused by solid waste stacking at the source and improves the ecological environment. Meanwhile, it maximizes the residual value of solid waste, realizes efficient recycling and low-carbon intensive utilization of solid waste resources, and endows the project with three core values: ecological environmental protection, circular economy, carbon reduction and carbon sequestration, achieving both economic and social benefits.
Backed by numerous successful industrial cases in the building materials industry, the Sequoia Team has in-depth expertise in the resource utilization of bulk industrial waste residues. We have accumulated rich experience in engineering implementation and technical operation in the harmless disposal and resource recycling of phosphogypsum, desulfurized gypsum, calcium carbide slag, aluminum ash, red mud, electrolytic manganese slag, nickel slag, blast furnace slag, steel slag, lithium smelting slag and other industrial solid wastes. Core technical members of the team fully participated in the construction and implementation of the world’s first resource recycling project for high-gypsum electrolytic manganese slag. Operated by the world’s largest electrolytic manganese manufacturer, this project features mature technology and outstanding industrial benchmark significance.
In 2025, the Sequoia Team took a core part in the research, development and construction of the world’s first iron-aluminum slag-based sulfuric acid production project co-producing calcium-based materials. Scheduled for official commissioning in October 2026, this project will further fill the technical gap in this segmented industrial field.
At present, the team has independently developed and fully mastered a series of core processes for bulk solid waste disposal. The technical system covers: the co-production process of sulfuric acid and cement clinker from natural gypsum, desulfurized gypsum and phosphogypsum; cement preparation process and suspended calcination process for high-activity lime production using calcium carbide slag; as well as efficient resource utilization technologies for metallurgical solid wastes such as steel slag and blast furnace slag. The overall technology boasts a complete system, wide application scenarios and high implementability.
Furthermore, focusing on the core fields of solid waste resourceization and building materialization, the Sequoia Team has established long-term, stable and in-depth industry-university-research cooperation with top domestic universities and research institutions, including Nanjing Tech University, Xi’an University of Architecture and Technology, Anhui University of Technology, and Chinese Research Academy of Environmental Sciences. Committed to continuous technological iteration and process innovation, we possess prominent technical and resource advantages in in-depth R&D and large-scale industrial application of bulk solid waste resource utilization.
Should you be interested in our team’s technologies, practical cases and comprehensive solutions for bulk solid waste resource utilization, please feel free to contact us for consultation and cooperation.
大宗工业固废资源化处置与高效利用，是我国工业绿色转型发展亟待破解的核心环保难题，更是推进“无废城市”建设、构建循环经济体系的关键抓手。
项目通过原料回收再造、精深加工复用、固废转化利用、废物资源置换等多元化技术路径，从各类工业固废中提取有效组分，或将固废转化为可复用的原材料、能源及工业辅料。在从源头削减固废堆放污染、改善生态环境的同时，最大化挖掘固废剩余价值，实现固废资源的高效循环、低碳集约利用，让项目兼具生态环保、循环经济、降碳固碳三重核心价值，经济效益与社会效益兼备。
依托建材行业海量落地成功案例，Sequoia团队深耕大宗工业废渣资源化领域，在磷石膏、脱硫石膏、电石渣、铝灰渣、赤泥、电解锰渣、镍渣、矿渣、钢渣、锂矿冶炼渣等各类工业固废的无害化处置与资源化利用方面，积累了丰富的工程落地经验与技术实操经验。团队核心技术人员全程参与全球首套高石膏型电解锰渣资源化循环利用项目的建设落地，该项目隶属于全球规模最大的电解锰生产企业，技术成熟度与行业标杆性突出。
2025年，Sequoia团队核心参与全球首套铁铝渣制硫酸联产钙基材料项目的研发与建设工作，该项目预计2026年10月正式投产运营，将进一步填补行业细分领域技术空白。
目前，团队已自主研发并成熟掌握多项大宗固废核心处置工艺，涵盖：天然石膏、脱硫石膏、磷石膏联产硫酸与水泥熟料资源化工艺，电石渣制备水泥工艺、电石渣悬浮态煅烧制备高活性石灰工艺，以及钢渣、矿渣等冶金固废高效资源化利用工艺，技术体系完善、适配场景广泛、落地性极强。
同时，Sequoia团队长期深耕固废资源化、固废建材化核心领域，与南京工业大学、西安建筑科技大学、安徽工业大学、中国环境科学研究院等国内顶尖高校及科研院所建立了长期稳定、深度紧密的产学研合作关系，持续深耕技术迭代与工艺创新，在大宗固废资源化纵深研发、规模化落地应用层面具备显著的技术与资源优势。
Comments (0)