基于SBR工艺的污水处理系统软件设计
摘要：作为当今工厂企业重要的自动化控制设备之1，可编程逻辑控制器（PLC）已经被广泛的用于现代工业控制系统中，尤其适用于逻辑、顺序过程控制。序批式活性污泥法，简称SBR法，是1种适用于中、小型的污水处理方法。
本文设计了1种基于SBR工艺进行污水处理的自动控制和微机监控系统的设计。系统的下位机采用了先进的西门子S7-200系列PLC（CPU 224）构成污水处理过程的.控制核心,并采用STEP7-Micro/WIN V3.2 编程软件编写PLC程序。上位机采用VB6.0作为监控界面的编程语言，利用VB的通信控件MSComm向PLC发送控制字符。
本文首先对SBR污水处理工艺作了1些介绍，然后介绍了PLC控制系统和VB的编程，经过调试达到了设计的要求。
关键词：污水处理；SBR；PLC；VB
Software design and research of the sewage treatment system based on SBR craft
ABSTRACT：Programmable Logic Controller (PLC) is the most important device for industrial control. It is especially suitable for logic processing control. Sequencing Batch Reactor Activated Sludge Process, SBR for short, is a middle and small scale sewage treatment methods.
This paper discusses a design of an automatic control and monitor system of computer for polluted water processing which uses SBR craft. The main device of the system is S7-200 series PLC（CPU 224）of Siemens Company and we use the software STEP7-Micro/WIN V3.2 to write the PLC program. VB 6.0 is used as the programming language to achieve the surveillance system, and the control characters is sent to PLC with MSComm that is an ActiveX of VB.
First ,we introduce the SBR sewage treatment craft ,then we describe the control system of PLC ,by debugging the program, it meets the design requires of system.
KEYWORDS： polluted water processing；SBR；PLC；VB
注释：不含源代码