Our experts discuss three case studies that illustrate the longevity of paste-thickened tailings facilities in the July 2022 edition of International Mining, Paste & Tailings Supplement. Coauthored by WesTech engineers Jerold Johnson and Brad Bentley, the article takes readers from iron mines in China and South Africa, where climates are arid, to a Brazilian bauxite plant operating in a semi-tropical climate.
GAC Contactor Helps Meet Regulations and Reduces Chemical Demand
Published by Aquafacts Magazine
The Spring 2022 issue of Aquafacts highlighted our successful granulated activated carbon (GAC) solution for the town of Lowville, New York. The article was coauthored by WesTech Engineering’s Eric Lawrence, Rich Ross, and Lele Liu in addition to Thomas Widrick (town operator for Lowville, New York) and Robert Boliver of BCA Engineers.
Water Regulations and Capacity Needs Drive Persian Gulf Refinery Upgrade
Published by Water & Wastes Digest
Three oil/water separators, each almost 32 meters long, and three sludge pump skids were put in place at the BAPCO Oil Refinery in Bahrain to replace equipment that has been in place since the early 1970s. The project was motivated by an urgent need to meet new government regulations and to increase capacity.
Updates to Package Plant System Dramatically Improves Operations
Published by Aquafacts Magazine
Our case study describing updates to an existing water treatment package plant system in Westfield, NY was highlighted in the Spring 2021 issue of Aquafacts, the official publication of the New York Rural Water Association. The article was written by WesTech engineers Chris Rettig, Richard Ross, P.E., and Jayme Tuomala.
Dewatering Upgrades Can Improve Phosphate Tailings Filtration
Published by Fertilizer International Magazine
Optimization of beneficiation plants can eventually create a bottleneck at the plant’s filters. The modernization of the filter to handle the process increase can be very costly. A very common flowsheet will use a thickener upstream of the filter.
Turn to WesTech Rentals for Municipal Short-Term Treatment Needs
Published by Treatment Plant Operator Magazine
There are many reasons that municipal plants might need temporary water and wastewater capacity. It could be because part of the plant is down for maintenance. Or a storm interrupts operations. Or a temporary solution helps the plant bridge the transition to a new system.
Treatment Plant Doubles Drinking Water Capacity Using RapiSand™
Published by Treatment Plant Operator Magazine
The population in Gilbert, Arizona was expanding rapidly, and the town needed to double the capacity of the Santan Vista Water Treatment Plant while keeping costs low. WesTech installed a high-rate clarification system to expand the plant, increasing flow capacity within the limited real estate.
Anaerobic Digestion Facility Upgrades to Handle Unique Waste from Yogurt Producer
Published by Water Environment & Technology Magazine
A dairy was considering moving its Greek yogurt production to a city in Central New York, and the city’s water resource recovery facility (WRRF) required site adaptations to handle the high-strength acid whey that develops as a byproduct of yogurt manufacturing. The WRRF also needed to resolve issues caused by its aging infrastructure.
Published by Water Environment & Technology Magazine
WesTech’s compressible media filtration (CMF) technology is treating combined sewer overflows (CSOs) at Welsh Water in Wales, United Kingdom. This is a significant project for WesTech in the UK as Welsh Water and other water companies throughout the country begin implementing wet weather controls to satisfy European Union Bathing Water criteria and other UK wastewater directives. It is also the first time that semi-precast concrete methods were used to install the technology, saving time and money for the project.
With increasing demands in community drinking water, treatment plants are looking at ways to maximize water production, optimize costs, and reduce downtime. Two utilities evaluated their water treatment processes and determined that they could be more efficient by replacing their older clarifiers that used heavy media with new adsorption clarifiers with buoyant media.
Opflow magazine featured these two case studies in their article about the advantages of buoyant media, written by Rich Ross, Gerry Baker, and Dave Lucey from WesTech.
