Townley, L.R., Jiang, H., and Tang, J. (2019), WRRM1 and WRRM2: Implementations in GoldSim of Unit Process Models and IWA Benchmark Models (BSM1 and BSM2) for Nutrient Removal, Innovation Conference on Sustainable Wastewater Treatment and Resource Recovery, 25-28 November, Shanghai, China, Convened by IWA.

New simulation software has been developed at the Nanjing University Yixing Environmental Research Institute, for use in training, and to facilitate the use of simulation software for improving the performance of water resource recovery facilities (WRRFs) in China. Computer simulation of WRRFs (formerly known as wastewater treatment plants or WTTPs) is useful for (i) design of new WRRFS, (ii) design of modifications to existing WRRFs, (iii) diagnostic analysis to understand the behaviour of existing WRRFs, (iv) design of new control strategies to improve the performance of WRRFs, and (v) training of operators, professionals and students. The new implementations are the first complete implementations in many years. This is also the first time that GoldSim has been used to simulate WRRFs. Rigorous comparison with the original benchmarks has allowed the developers to have confidence in their ability to represent all biochemical processes perfectly, and therefore to have confidence in their ability to customise models for individual WRRFs in China, with the same or similar unit processes.