wastewater process control Articles
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Deployment of biokinetic modeling tools to optimize real time biological wastewater process control in the oil refining industry
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 control in Oil Refining of course lies in the Biological ...
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Energy consumption model for wastewater treatment process control
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, an extended Elman neural network-based energy ...
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Monitoring and control of a partially packed biological aerated filter (BAF) reactor for improving nitrogen removal efficiency
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. Oxidation-reduction potential (ORP), pH and dissolved oxygen (DO) were measured on-line and chemical parameters were measured in the ...
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Regulation 17: the way forward to meet requirements
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 replaces Regulation 2834. Over the years, a lack of enforcement of ...
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Optimization of a Wastewater Treatment Facility - Case Study
Project Location: DE Client: Public Corporation – Pharmaceutical Manufacturer Project Description: A publicly traded manufacturer of pharmaceutical products had great concern over their process effluent wastewater treatment facility, after receiving increasingly frequent citations and penalties from the local POTW. Though their treatment facility was properly sized and correctly ...
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4 Benefits of Industrial Wastewater Monitoring
Water quality monitoring has evolved significantly over the past decade. Today’s industrial manufacturers have access to technologies that are capable of monitoring various wastewater quality parameters and contaminants of concern in a simple and effective manner. A continuous stream of water quality information to a plant’s control system can provide significant value. Here are four ...
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Success of Onlin Leads to Closing for Wastewater 2 Process Control of Consent Order Treatment Plant
In 2003, Plant City, a small Florida city of 30,000 residents, faced a very big problem. The Florida Department of Environmental Protection (FDF.P) determined that the city's wastewater treatment plant was not consistently operating within its permit limits, and placed it under a consent order. Plant City is a highly industrialized area. "Our industrial loading is very diverse and includes metal ...
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pH Electrode Guide
There are two different methods of measuring pH currently available called potentiometric and photometric, with several different subsets of technologies for each. 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 ...
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Smart Septicity Monitoring for Sewer Networks
Wastewater process control is increasingly complex as regulations become more stringent. The monitoring of wastewater quality plays a crucial part in identifying existing or emerging problems within sewer networks and new technological advances are transforming the future of wastewater management, offering the ultimate smart sewer septicity solution for sewer networks. Managing and controlling ...
By Coftec
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Eliminate Electromagnetic Interference from Analog Systems
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 ...
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A total cost minimization control for wastewater treatment process by using extremum seeking control
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 ...
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Total Nitrogen and Total Organic Carbon Analysis by High Temperature Combustion
Abstract Modern High Temperature Combustion (HTC) technology with Chemiluminescence detection (CLD) provides a fast and efficient way to monitor nitrogen loading by Total Nitrogen (TN) analysis. Nitrogen monitoring can be an integral function for the process control of wastewater treatment and other industrial applications, including seawater analysis. Due to the fact that TN analysis can be ...
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Survival of Helicobacter pylori in the wastewater treatment process and the receiving river in Michigan, USA
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. However, the presence and viability of H. pylori in the treatment process is not well known. In this paper, the real colony morphology of H. pylori was confirmed ...
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Why many control systems fail. Water Environment and Technology
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 control authority to deal with changing influent quality and quantity. ...
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Keeping it clean; close watch over wastewater level case study
Osem Industries Ltd. chooses SmartScan50 to measure the level of its wastewater facility. Osem Industries LTD is one of the biggest food manufacturing and marketing companies in Israel. The group produces more than 1,000 different food items currently manufactured in ten production plants. The Sderot plant is Osem’s most-southern manufacturing point in Israel. This plant, which in the ...
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Pump metering wastewater chemicals operationally effective and cost efficient
Pumps are the heart of wastewater treatment systems and pump metering chemicals is critically imperative to required wastewater treatment! Different types of pumps are designed for unique wastewater treatment pump applications. Centrifugal pumps are used for general wastewater pumping. Positive Displacement pumps are used for pumping heavier solids. Chemical Metering Pumps are used for pump ...
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