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《测控技术与仪器专业英语（第2版）》分为4章、20个单元和21个阅读材料。第1、2章分别综合介绍测量与控制技术的背景、基本理论、基本技术概念及全貌；第3章较具体地介绍检测技术的基本内容；第4章重点介绍当前国内外一些新的测量技术与方法。每篇课文之后设置有词汇表、注释、练习和阅读材料；每篇阅读材料之后也设有词汇表和注释。全书后设有词汇总表，并附有关于如何撰写英文的学术论文、关于如何参加一次国际IEEE学术会议、关于工程索引“EI”的介绍。
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Instrumentation, Control and Automation for full-scale
Sequencing Batch Reactor Plants
H. Steinmetz * and J. Wiese **
** Institute for Innovative Wastewater Technologies, University of Kaiserslautern, Paul-
Ehrlich-Str. 14, 67663 Kaiserslautern, Germany (Email: )
* Anlagen- und Sondermaschinen Automation (ASA) GmbH, Robert-Bosch-Str. 7, 32547 Bad
Oeynhausen, Germany (Email: ) (formerly: *)
Abstract The sequencing batch reactor (SBR) technology possesses a high process flexibility
and treatment efficiency. Unfortunately, up to now most SBR plants are still using fixed timebased
sequential control (TSC), which can not react flexibly. Therefore, this paper will focus
on instrumentation, control and automation (ICA) for SBR plants, because with the help of
modern supervisory control and data acquisition (SCADA) systems and dynamic RTC it is
possible to operate SBR plants much more effectively.
Keywords Real-Time Control (RTC), SBR, Instrumentation, Control and Automation
Introduction
One of the several types of WWT technologies commonly used in the world (i.e. several
thousands), is the SBR technology, where all treatment processes take place in one single
reactor. In dependence of diurnal, weekly or seasonal variations in flow rate, load and sludge
characteristics it is possible to vary the sequences of the steps and the duration of phases in a
cycle. This leads in principle to a high flexibility of the SBR technology. To exploit the
advantages of (dump filled) SBR technology like flexibility, high metabolic activity and
good sludge settling properties etc. SCADA systems and powerful programmable logic
controllers (PLC) are required combined with flexible control strategies.
But in many cases the flexibility is not used because most of the SBR plants use fixed TSC.
