改良系统成熟度法定量评估污水LOT技术应用潜力——以水专项及相关技术组合为例

Quantitative evaluation of Limit of Technology(LOT)application potential by Improved System Readiness Level Assessment——A case study on projects of“Major Science and Technology Program for Water Pollution Control”and related technology combinations

随着污水处理满足再生水品质的需求日益提升,对污水中污染物的去除也逐渐向极限技术(LOT)发展,亟需探索适合我国国情的技术选择方式。基于现有技术成熟度法(TRL)通过算法矩阵构造改良的集成系统成熟度(SRL)评价法,对依托“十一五”、“十二五”和“十三五”期间国家水体污染控制与治理科技重大专项相关课题的LOT备选技术、组合及国内外其他满足LOT备选技术组合,进行综合定量评估,梳理我国LOT技术发展现状、并筛选出12项LOT备选技术组合。其中,“A^(2)O+反硝化深床滤池技术”、“A^(2)O+MBBR+混凝沉淀技术”、“A^(2)O+活性自持深度脱氮技术+BAF技术”的SRL可达0.8~1,达到生产、操作和维护阶段,可直接进行生产应用并面向市场产生较高应用效益,但3项技术组合的TN、TP单位质量去除成本较高,其核心处理功能工艺主要为传统反应器类技术。大部分单项技术TRL的等级大于7,改良SRL为0.6~0.8,处于系统发展验证阶段,相关技术组合正在为真正的市场推广进行产品稳定性提升,且大部分备选技术组合充分利用了植物和湿地等生态技术的优势,既实现了较强的同步脱氮除磷,又具有运行和维护成本低的市场优势,符合减污降碳协同增效的政策背景,故更具有推广价值。备选LOT技术组合基本实现了成本优化和低碳低耗的技术运营模式,可满足污水的资源化及生态环境的优化需求。本研究结果可为低碳低耗污水处理技术的成熟度评估和筛选提供参考。

Sewage treatment to meet the demand of recycled water quality is increasing,and the technology suitable for the situation in our country has yet to be optimized as it gradually explores limit of technology(LOT)of sewage nutrition removal.This paper constructs an improved system readiness level(SRL)evaluation method based on the existing technology readiness level(TRL)and algorithm matrix,and relies on the LOT alternative technology combinations related to the national"Water Pollution Control and Treatment Science and Technology Major projects"during the“11th Five-Year Plan”,“12th Five-Year Plan”and“13th Five-Year Plan”and other domestic and foreign alternative technology combinations that meet the requirements of LOT.By comprehensive quantitative evaluation of TRL and improved SRL,the current situation of the development of LOT technologies in our country is sorted out and 12 candidate technologies combinations are selected.Among the 12 selected LOT alternative technology combinations,the SRL value of“A^(2)O+Deep-Bed Denite Filters Technology”,“A^(2)O+MBBR+Coagulation Technology”and“A2O+Self-acctive Denitrification Technology+BAF”can reach 0.8~1,reaching the stage of production,operation and maintenance,which can be directly applied in production and generate high application benefits in the market.While the cost of TN and TP per unit mass removal of the three technology combinations is high,and the core functional processes are mainly traditional reactor technologies.Most of the single technology TRL levels are above 7,and most of the improved SRL values are between 0.6 and 0.8,which are in the stage of system development and verification.The relevant technology combinations are improving product stability for real market promotion.And most alternative technology combinations make the great use of the properties of ecological technologies such as plants and wetlands,which not only realizes strong synchronous nitrogen and phosphorus removal,but also has the market advantage of low operation and maintenance cost,which has the potential to be popularized..The LOT alternative technology combinations basically realize the cost optimization and low carbon and low consumption technology operation mode,and meets the needs of waste water reclamation and the improvement of ecological environmen.