Influent Articles
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Open Channel Flow Meter for Influent
Application Problem: A municipal utility required a flow meter to monitor influent flow in an open channel.Application History: The influent flows into the treatment plant through a narrow open channel flume that made level measurement difficult.Solution: ABM’s non-contact mini ultrasonic level transmitter and open channel meter (OCM) were selected for the application. ABM’s ultrasonic ...
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Fujian Changting Industrial Wastewater Treatment Project
Capacity: 120tons/day Process: UF+DTRO (High-salt wastewater treatment membrane systemX2) Wastewater: Gel wastewater+Microspheres wastewater 20tons/hour Influent water quality (Gel wastewater): SS<=36mg/L, Ca2+<=40mg/L, SiO2<=50mg/L, SO42<=26000mg/L, Na+<=14500mg/L, Cl-<=40mg/L temperature < = 35degree Celsius, TDS: 38000-40000mg/L, pH 6-6.5 Effluent water quality (Gel ...
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Know your options for mag meter installation cost, care, and calibration
Electromagnetic meters (mag meters) are well established in terms of highly accurate performance for a variety of municipal and industrial water applications. Differences in their construction formats, however, dictate how easy they can be to install, maintain, and calibrate. Compare these three options to see the value of full-profile-insertion (FPI) mag meters and their associated advantages in ...
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Yangmei Pingding Coal Chemical Wastewater Zero Liquid Discharge Project
Zero discharge of coal chemical wastewater is a new field of special membrane applications. Jiarong Technology has cooperated with advanced domestic engineering companies to develop and realize a number of large-scale coal chemical zero liquid discharge projects. The system uses Jiarong STRO high-concentrate technology products for concentrate water reduction, and the equipment has continued to ...
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Toxkit Technology and New Zealand Water Quality Guidelines
Abstract : The primary objective of this project was to evaluate six Toxkits and the IQ Toxicity TestsTM, for suitability in the role of screening of whole effluents in DTA required by Resource Consents. As an extension, their role as \'up the pipe\' toxicity identification tests were also evaluated. Screening tests must be cost effective (so that regular testing may be performed), easy to use ...
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Improved Treatment in a Facultative Lagoon System - Case Study
Topics: wastewater, facultative, lagoon, pond, DO distribution, odor mitigation, SolarBee floating wastewater mixers System Overview: Wastewater influent to this system consists of ~50% municipal from the City and ~50% industrial from a local candy manufacturer. This is a 3-cell facultative lagoon system covering a total of 102 surface acres. Water enters the system at Cell 1 then flowing ...
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Bar screen effectively prevents pumps from clogging - Case Study
Problem New Jersey’s Lower Township Municipal Utilities Authority operates a 5 mgd wastewater treatment plant. Influent arrives through a 48-inch pipe 23 feet below grade. The manual inflow pump screening setup was difficult and hazardous to clean, and the 2.5-inch screen spacing let too much nondispersible waste through. The 3,000 gpm non-clog pumps clogged constantly, and each day two or ...
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Taking denitrification to the next level: An upgrade of proven technology with 21st century I&C
KEYWORDS Instrumentation, Automation, SCADA, Denitrification, Case Study, Wastewater, Water Reclamation ABSTRACT In 2006, one of the largest water reclamation facilities in the northern Virginia area recognized the need to expand the facility from 18 to 24 million gallons per day (mgd) to support future growth in Prince William County, Virginia. At the same time, new regulations necessitated ...
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Fluence’s MABR at the Codiga Resource Recovery Center
A Membrane Aerated Biofilm Reactor (MABR) manufactured by Fluence Corporation (Fluence) was installed at Stanford’s Codiga Resource Recovery Center (CR2C) in January 2018. The system was tested with domestic wastewater diverted from Stanford’s sanitary sewer. Treatment performance was evaluated according to two benchmarks: California Title 22 standards for non-potable water reuse (T22) and a ...
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Pros and Cons of Wastewater Treatment Methods: Coagulation & Disinfection
Every stage in a wastewater treatment process is important to achieve the desired treatment results. However, primary treatment and tertiary are critical to the overall process. In the primary treatment process solids are reduced to a large extent. Without this step, subesequent treatment would be less effective. In tertiary treatment, harmful microbiological matter is rendered killed or inactive ...
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San Francisco PUC influent monitoring and aeration control - Case Study
The SENTRY™ system was installed at the San Francisco PUC, wastewater treatment facility in April 2019. "The sensor has been really useful and we are developing a good correlation between the COD mass loading and the MET data. Our next step is to use this to further automate our oxygen feed rate to the ...
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DO2E Algae Monroeville, Alabama - Case Study
Problem: The city of Monroeville, Alabama, had aeration and mixing issues, a sludge build-up, and an algae problem in their sewage lagoon. This was the result of a decrease in the wastewater influent of 90% from a recently lost (shipped overseas) garment manufacturing facility the loss of which filled the sewage lagoon 80% with an increased biosolid loading. Solution: DO2E provided two (2) 5 ...
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UCT XtrackT® Sorbent Cited in Drugs in Wastewater Article
Environmental analysts are often tasked with the evaluation of illicit and prescription drugs in wastewater samples in an attempt to better understand the epidemiology of a populated area. Due to the challenging consistency of this matrix, clean-up is often vital in order to achieve accurate detection. In a recent paper authored by Richard Bade et al., published in Analytical and Bioanalytical ...
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Separation and identification of hormone-active compounds using a combination of chromatographic separation and yeast-based reporter assay
AbstractArxula adeninivorans-based yeast cell assays for the detection of steroid hormones demonstrated their efficiency for the determination of total hormone activity in a variety of samples using a microtiter plate format. In this study, a preliminary chromatographic separation using thin-layer chromatography plates is introduced in order to allow a rapid identification of the compounds ...
By QuoData GmbH
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Not All Stainless Steel Resists Corrosion
For Municipalities and Municipal Utilities Authorities struggling to deal with corrosion issues, knowing where to turn when faced with these challenges can be daunting. Logan Township Municipal Utilities Authority, of NJ was faced with such problems when it was discovered that a five year old stainless steel headworks tank at their wastewater treatment facility was experiencing extreme ...
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Assessment on inflow and infiltration in sewerage systems of Kuantan, Pahang
Inflow and infiltration are important aspects of sewerage systems that need to be considered during the design stage and constantly monitored once the sewerage system is in operation. The aim of this research is to analyse the relationship of rainfall as well as inflow infiltration with sewage flow patterns through data collected from fieldwork. Three sewer pipelines were selected at the ...
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Open Channel Flow Monitors retired after 16 years continuous service - Case Study
Long Sault WWTP Influent Flow Monitors Greyline Open Channel Flow Monitors were installed at the Wastewater Treatment Plant in Long Sault, Ontario when the SBR plant was originally commissioned in 1995. But after 16 years of continuous service, components for the old models became obsolete. Plant operators Caneau Water and Sewage Inc. decided to replace the instruments and new Greyline OCF 5.0 ...
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Area-Velocity Flowmeter Installations in Denmark - Case Study
Area-Velocity Flow Meters are designed to monitor flow rates in partially filled pipes and open channels without flumes or weirs. A sealed ultrasonic sensor is mounted on the bottom of the pipe or channel and connected to electronics through a watertight cable. The sensor measures both level and velocity and when calibrated with the pipe diameter or channel dimensions, the Greyline AVFM ...
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Automatic control of the effluent turbidity from a chemically enhanced primary treatment with microsieving
For chemically enhanced primary treatment (CEPT) with microsieving, a feedback proportional integral controller combined with a feedforward compensator was used in large pilot scale to control effluent water turbidity to desired set points. The effluent water turbidity from the microsieve was maintained at various set points in the range 12–80 NTU basically independent for a number of studied ...
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Upflow anaerobic sludge blanket and aerated constructed wetlands for swine wastewater treatment: a pilot study
Swine wastewater management is often affected by two main issues: a too high volume for optimal reuse as a fertilizer and a too high strength for an economically sustainable treatment by classical solutions. Hence, an innovative scheme has been tested to treat swine wastewater, combining a low cost anaerobic reactor, upflow anaerobic sludge blanket (UASB), with intensified constructed ...
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