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Wastewater Process Control Articles & Analysis
16 articles found
In situations where it is difficult to shut down the process, cut the pipeline, and weld on flanges, insertion meters may be the ideal choice. ...
By simply gaining greater visibility of the wastewater treatment process an operator has the real-time information needed to foresee and resolve problems long before they become a compliance issue. 2. Wastewater Process Control Directly related to regulatory compliance is the ability to treat ...
This article focuses on the real-time monitoring capabilities of glass pH electrodes used in industrial process control, wastewater treatment, and environmental data logging and provides comparisons of common features to assist in purchasing the right electrode/sensor for your ...
This article focuses on the common causes of noise in analog devices related to water quality measurement, but the concepts and preventative measures are applicable to any electronic measuring device. We go over the types of electromagnetic interference along with how to identify and prevent them. Additional tips for designing a noise-resistant system are provided toward the end of the ...
Wastewater process control is increasingly complex as regulations become more stringent. ...
ByCoftec
This paper presents a real-time optimal control scheme based on a total cost index (TCI) by using the so-called extremum seeking control (ESC). The ESC searches the minimum value of a given performance index where the TCI consisting of the operational cost and the effluent quality cost is used as the index. An improved ESC is proposed where a transformed TCI by monotonically increasing ...
Contaminated water may play a key role in the transmission of Helicobacter pylori, resulting in gastrointestinal diseases in humans. The wastewater treatment process is an important barrier to control the transmission of H. pylori. ...
Regulation 17 from the Water Services Act 108 (1997) is currently being implemented for the classification of wastewater treatment facilities and process controllers in South Africa. Green Drop Assessments (an incentive-based programme for wastewater treatment works) place a large focus on Regulation 17 compliance, which ...
Using a PID Controller is very effective regulating the volume of chemical pumped to maintain a requisite value regardless of variations of wastewater and its pH value. PID theory is made easy by optimizing wastewater treatment performance with modern process controllers. A PID controller is ...
I( was apparent, however, that new tanks and aeration basins alone wouldn't sufficiently improve operations; it would also require better process control. Plant City faced a challenge common to many small wastewater treatment plants, as well: turnover of its experienced operators. ...
Wastewater treatment must satisfy discharge requirements under specified constraints and have minimal operating costs (OC). The operating results of wastewater treatment processes (WWTPs) have significantly focused on both the energy consumption (EC) and effluent quality (EQ). To reflect the relationship between the EC and EQ of WWTPs directly, ...
The control chamber, located above the cesspit has an iron opening through which the wastewater can be seen. ...
Abstract: When implementing real-time process control systems at wastewater treatment plants (WWTPs), several technical problems may have to be addressed. Sensors have to be reliable. Controllers should be properly designed and tuned. Fault detection should be implemented and safety nets designed. Actuators must have adequate ...
This paper examines on-off systems and automatic monitoring and control of a biological aerated filter to identify the end point of nitrification and denitrification processes, and chemical oxygen demand (COD), ammonia-nitrogen removal (NH3-N) and aeration savings. ...
Perhaps no industry has more operationally failing wastewater treatment plants than those deployed in the Oil & Petrochemical market segments. These plants have some of the toughest influent contaminant profiles to treat, and suffer from some of the largest ranges of variation in contaminant loadings. The toughest area of wastewater process ...
Nitrogen monitoring can be an integral function for the process control of wastewater treatment and other industrial applications, including seawater analysis. ...