Based On The Design Of The Automatic Control System Of Sbr Wastewater Treatment Process

The requirement of environmental protection is more and more high along with the unceasing economy development of our country.The sewage treatment plants come out one after another all over the country, but actually the automation of the treatment is not high, and moreover the sewage treatment does not works good.SBR is sequencing Batch Reactor's short name.It is a biological treatment of sewage and waste water.The later period of 20th century the SBR process was used in processing the intermittent emissions, the changing very big The treatment of the industry dirt waste water in which water volume and the water quality have great changes has been very greatly successful and is widely applied.Also the SBR sewage treatment process need higher automatic control technology, simultaneously also for the break overseas technology monopoly, we urgently needs to study the SBR sewage treatment process computer automatic control technology which suits our country national conditions.This article according to the SBR sewage treatment technological process the development and the domestic and foreign sewage treatment process automatic control present situation analysis research, proposed the application of the field bus technology to Yankuang Guohong Chemical CO,LTD newly built SBR sewage treatment process.Proposed"SBR sewage treatment computer automatic control system based on the field bus PROFIBUS", namely chooses the PROFIBUS field bus network to be PLC and IPC communications network.And the field bus, PC and PLC is composed with the field bus control system (FCS) compatible system.This system takes field bus PROFIBUS as a core, takes the computer as the system programming, the configuration, the monitoring, the management and the maintenance integrated platform, takes PLC as the control main body.The system has realized the integration of Yankuang Guohong Chemical CO,LTD SBR water disposal plant computer control system and network communications,and strong adaptation function of the next control system expansion.