Automated control of the treatment facilities on the basis of mathematical models

Summary

The applicability of the mathematical models in the control of wastewater treatment facilities in terms of the operational issues solutions is considered. A possible option of using the software package on the basis of ASM mathematical models in the control of the biological treatment plant with retrofitting into the control system of the entire wastewater treatment facilities is presented. The general principles of control system building with the integrated mathematical model of the biological treatment process are described. The comparative analysis of the popular advanced software simulation packages and the simulation software developed by My Project Company is sited. By the example of the standard aeration tank configuration the possible and easy integration of the software into practically any advanced SCADA-system is demonstrated. The contrary case is described: the use of the software in the highest level of the automated process control system of the wastewater biological treatment.

Key words

biological treatment , energy efficiency , mathematic modelling , automated control system , technical process , hardware and software

Technology of using powdered activated carbon: the experience of SUE «Vodokanal of St. Petersburg»

Summary

In the context of progressive urbanization of territories, increasing anthropogenic impact on the environment, global climate change, high probability of environmental and manmade disasters, depletion of natural resources and the current demographic situation, the risk of reducing the level of safety of drinking water supply increases. At present, the threat of probable pollution of water sources due to possible terrorist sabotages or manmade disasters has significantly increased. There is a potential hazard of detecting toxic chemicals in intake water. Surface sources of water supply are subject to significant fluctuations in water quality owing to the impact of natural and anthropogenic factors. One of the key tasks to be considered is possible prompt and effective neutralization of the water source pollution with organic substances of natural and artificial origin in order to eliminate supplying water of non-normative quality to the consumers. The feasibility of increasing the reliability of sorption technologies alongside with introducing production processes that meet modern requirements has been estimated.

Key words

sorption , powdery activated carbon , drinking water supply , technical process , automatic process control system