Bishop Solids Management Solution — Dewatering for all occasions
DATE POSTED: September 3, 2021
We’ve dewatered a lot of stuff over the years.
Everything from ordinary wastewater sludge and excess soil from construction sites, to noxious slurries containing really smelly organics, industrial process wastewater, and even low-level radioactive materials.
Over that time, we’ve learned a couple of things.
First, that our Bishop Solids Management Solution is extremely versatile. It can be used to collect, dewater and consolidate almost any type of slurry material.
The second thing is that our Solids Management Solution is one of the most efficient and cost-effective ways to get the job done. Our passive, gravity-based dewatering system is often compared against more complex, energy-intensive processes such as centrifuges, belt presses, and filter presses. In most cases, we can demonstrate that the Bishop Solids Management Solution can achieve similar or better dewatering performance at a lower cost and using less energy than alternatives.
The Bishop Solids Management Solution not only retains and consolidates solids, it also provides water treatment—greatly reducing TSS, nutrients and other contaminants of concern. This can be an effective pretreatment step or, depending on regulatory requirements, the filtrate can meet standards for discharge to the environment or even reuse in non-potable applications.
Start with a simple sludge test
Our process starts by obtaining a sample of the sludge and performing a dewatering test. The test reveals a lot of important information such as the solids concentration of the slurry, the polymer that will provide the best dewatering performance and how much water can potentially be removed.
We also need to know the approximate volume of sludge to be dewatered. This information, combined with the results from the dewatering test enables our team to calculate the number of Geotube® dewatering containers that will be needed, how large the dewatering cell will be, how much polymer will be needed and of course, how long the project will take.
What’s your solids management or dewatering challenge?
We have the solution.
Contact us to discuss your solids management needs and learn how simple, low-energy solutions from Bishop Water can help.
Learn more about the Bishop Solids Management Solution.
Partial lagoon cleanouts help balance performance and budgets
DATE POSTED: July 30, 2019
You might think that if you’re going to cleanout a cell or two of your wastewater lagoon, it’s best to do it all at once. But there are circumstances when a partial clean out might be the best way to quickly fix an urgent capacity or performance issue until the lagoon is ready for a full desludging.
Partial clean outs, using the Bishop Solids Management Solution, can most often be completed while the lagoon remains in operation, so there’s no need to decommission the cell or disrupt the process flow. Bishop Water can quickly diagnose lagoon performance issues caused by excess sludge and determine the volume and locations of sludge that should be removed from the cell.
Once a plan is ready, the team can mobilize a dredge, its mobile polymer conditioning system and prepare a laydown area for Geotube® containers, which are used to collect, dewater and consolidate the solids. Or, if the volume of sludge is small, they can be filled and removed inside 30-yard roll off boxes, making transportation and disposal fast and simple.
Partial sludge clean outs can also become part of an ongoing lagoon maintenance program to ensure optimum performance. Rather than waiting until sludge accumulation reaches a critical level, lagoon operators or Bishop Water technicians, can monitor sludge accumulation in the lagoon and when needed, proactively perform a partial clean out to maintain an optimized level of performance.
Partial lagoon cleanouts have been used by many lagoon operators to achieve operational and economic benefits including:
- Quickly restore lost storage and treatment capacity in the lagoon;
- Correct flow issues caused by sludge accumulation that create short-circuiting of lagoon flow and reduced retention time;
- Defer the cost of a full lagoon clean out over an extended period of time;
- Maximize the capacity and dewatering of each Geotube® container. Partially filled containers can remain onsite for continued filling at the next clean out interval. They will experience significant volume reduction between fill intervals, which will reduce the number of containers needed as well as hauling and disposal costs.
Contact us to learn more about the Bishop Solids Management Solution and to discuss your lagoon clean out needs.