THE MAGAZINE FOR THE DRAINAGE, WATER & WASTEWATER INDUSTRIES
CASE STUDIES
population that has leapt from 6,900 people (in 1998) to a figure approaching 25,000 today, Kill Creek has won the Kansas Water Environment Association (KWEA) Wastewater Treatment Plant of the year seven times, and in 2020, Scott Millholland received the William D. Hatfield Award for Wastewater Operator of the Year. The coveted title honours operators who have contributed positively to preserving and enhancing the water environment through their leadership, example, enthusiasm and hard work. Scott not only oversees the entire facility, leading and mentoring his team, but also still works as an operator and mechanic/ engineer.
‘Never Compromise On Treatment Quality’
“Building a better community today for future generations really inspires me,” added Scott, “and our team takes great
pride in protecting the local environment and waterways. We haven’t had a permit violation for over two decades. The plant here was originally designed to serve a population of 25,000 with a processing capacity of 2.5mgd. We’re currently running at about 2.3 mgd, with room to expand (because it is modularised) to 7.5 mgd without disrupting operations. Gardner is one of the fastest growing cities in the US; very much on the up with new jobs and an expanding economy, so it is very important that we keep at least one step ahead with our operations. We try to save money wherever we can, but never compromise on treatment quality.”
In addition to significant population growth, Kill Creek Water Resource Plant is also having to meet the new task of reducing phosphorous and nitrogen
outputs to meet ever stricter discharge permits.
‘A Long Way On Its Journey’
“We’ve made some operational process adjustments to tackle this,” said Scott, “and will continue to keep on top of it. “Gardner has come a long way on its journey from lagoons, fixed film plant with trickling filter, rotating biological contactor, chlorine, package plant – and then full treatment plant. We used to do pretty much everything on an on-call basis, from checking the water and wastewater plants, water breaks, turning meters on and off, and anything and everything else that needed to be done. For new challenges such as reducing phosphorous and nitrogen, all of our equipment, no matter how new or old, including the mixers from Landia, will play their part.”
New SPIRAC screen for Hong Kong University of Science and Technology
A high-efficiency dual-flow traveling fine-screen made by SPIRAC has been installed at the world-renowned Hong Kong University of Science and Technology (HKUST).
Working in close conjunction with BML Engineering, who have vast water & wastewater project experience in China, Hong Kong and the Far East, SPIRAC supplied and installed its Bandguard 300 ‘Out to In Type’ dual flow travelling band screen (for civil opening width of 1.66 m and civil channel depth of 11.2 m for discharge capacity of 2000 litres) for HKUST’s seawater pump house.
Consistently ranked among the top-tier universities (with over 16,000 students), in Asia, HKUST’s Bandguard screen from SPIRAC prevents screenings accumulation and significantly reduces the maintenance costs of downstream equipment. The screen is designed to achieve full cleaning by first depositing all debris in the internal launder system, and then feeding it out through the side
FOLLOW US of the screen.
Gary Lau, General Manager at BML Engineering, said: “SPIRAC very much meet our customer’s needs for equipment and back-up of a first-class quality that will stand the test of time. The Hong Kong University of Science and Technology is very pleased with this
installation.”
Shaym Mallen from SPIRAC, added: “We are very proud to see our design and manufacturing recognized for such important projects in Hong Kong, and to work alongside BML Engineering, who have such in-depth experience, expertise and capability.”
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