Is there a “right choice” for dewatering of sludge?
Many manufacturers will be quick to highlight the features and benefits of their technology over a competitor’s. Whether it is % solids achievable, polymer dosage required, throughput available, automation, ease of maintenance, energy costs, odor capture or a plethora of other options. It is easy to focus in on one benefit or feature and lose the sight of the big picture.
The truth is there is no right choice for the dewatering of sludge. Instead there is a right process for determining what dewatering technology or technologies will work best for your needs and it starts not with the technology, but with the sludge itself.
Dewatering of Sludge Trends vs. Individual Sludge Assessment and Solutions
It is true that trends exist in the industry like those highlighted in the article How Do I Choose the Best Option for Sludge Dewatering? Those trends exist for a reason. Facilities with similar types of sludge and related needs will tend to required similar solutions.
The overview provided in the article isn’t wrong but starting with a trend to determine the sludge dewatering process required can yield poor results. Your dewatering solution may require more than just the selection of a dewatering technology but may also involve sludge pre-treatment or other changes to your sludge collection and management process.
The Ideal Process for Dewatering of Sludge
The best process for dewatering sludge involves a few steps:
- Assess sludge characteristics
- Establish dewatering goals and factors affecting the desired outcome
- Identify and select the best techniques and technologies available to achieve goals
- Implement dewatering of sludge technologies and techniques
- Evaluate success of the dewatering implementation against goals
Each individual sludge situation will have different characteristics and understanding these characteristics is the first step to determine which technology you should choose. Once the sludge characteristics are known and understood, the next step is to clearly define the desired goals and factors affecting the goals. Some may suggest the goals should be defined first, but it is impossible to define realistic goals without knowing what you have in the first place. Often the goals may be the same from one facility to another but the factors affecting them such as volumes, disposal cost, energy cost, or maintenance capabilities will vary significantly. Knowing the sludge characteristics and the desired outcome(s) will ensure the big picture remains in sight while different technology features and benefits are being evaluated. The final steps in the process are to implement and gauge the success. Rolling these learnings into the future dewatering of sludge process will be key to improved success down the road.
The Right Choice for Dewatering of Sludge is All About the Process
So, in order to make the best choice for dewatering of sludge, it is important to focus on the process first and allow the technology and equipment choices to be informed by the sludge assessment and defined goals.
Continuously improving by leveraging technological advancements to meet the needs of customers while balancing environmental and safety priorities, Wessuc now provides hydro-vac and coring services
NEWS RELEASE – February 21, 2018 – Wessuc is pleased to announce the expansion of services and capabilities by offering coring and hydro-vac services to new and existing customers. The introduction of these services is just another step in-line with Wessuc’s mission, to leverage technological advancements to make an environmentally safer place to live, work, and play.
Coring services are ideal when access to underground utilities and/or localized excavation are required, but open excavation is not possible. Hydro-vac services are employed to break up and remove soil when traditional digging is unfeasible.
Wessuc’s coring services are enabled by the cutting edge technology of the new Trailicor Rover by Utilicor Technologies. The Trailicor Rover is the first towable, self-propelled coring unit that can accurately core up to 24-inch diameter cores in minutes. The Trailicor Rover technologically advanced features and benefits include:
- Smooth and precise, commercial grade, hydrostatic drive propulsion system
- Easily maneuvered into tight and restricted work sites
- Equipped with the industry standard, field proven, robust Utilicor hydraulic coring system
- Four hydraulic powered stabilizer for a rock solid coring platform
- Premium maneuverability
- Integrated water tanks
- Rugged, front-facing camera with waterproof viewing screen that provides driver with a full 120° angled view of everything in front of the vehicle
“Infrastructure maintenance is a key aspect of environmental protection. Our coring equipment enables Wessuc to service our clients in a cost-effective and expedient manner. Underground utilities can be accessed for visual inspection, maintenance, and repair. This can all be done with minimal site disruption.” said Hank VanVeen, Vice President of Wessuc. “We are continuously seeking new ways to provide services and guidance to support the industry including our blogs and case studies where we feature topics like dewatering, sludge removal, biosolids, agricultural nutrient management and more.”
For more information about Wessuc’s hydro-vac and coring services, please contact your local Regional Sales Manager:
North Ontario: Lorne McCallum – lorne (at) wessuc.com
West Ontario: Frank Hartshorne – frank (at) wessuc.com
South Ontario: Adrian Tod – adrian.tod (at) wessuc.com
Established in 2000, Wessuc is a family owned and operated business that cares about the environment and how our operations affect it. We don’t just pump, clean, inspect, and haul. We continue to expand our services and our capabilities to a make a greener and environmentally safer place to live, work, and play.
We do all of this with a safety-first mindset and a quest for the latest in technological advances. We’re dedicated to constantly improving our processes and finding new ways to meet the needs of our customers. The status quo is never enough and at Wessuc it never will be.
It’s why we’re the leader in our industry and the reason our relationships with clients go beyond to just getting the job done. We really do care about and are proud of everything we do. It’s in our DNA and the only way we know how to do business.
Wessuc was awarded a 3-year contract with the Region of Durham to manage the cleaning of three lagoons at the Nonquon treatment facility just outside of Port Perry.
Wessuc was hired for the removal and utilization on agricultural land and/or the removal and alternate disposal of the sludge, sediment and weed growth. Wessuc proposed a unique solution with the use of geo-textile bags to dewater over 75,000 m3 over the 3 year period.
Technical Performance- Highlights
Wessuc pumped over 800 gallons per minute through the geo-textile dewatering bags.
Land Application- Highlights
Later in the fall the biosolids were removed from the site, and taken to licensed agricultural sites for beneficial use. In the end, the Region of Durham received a biosolids management award for the use of this innovative technology.