GN Solids Control

Category Archives: Drilling Mud Cleaning

Waste Sludge Dewatering Equipment shipped to Environmental Company

GN Solids Control this month finished manufacturing of one whole set waste sludge dewatering system for an environmental company, it mainly includes dewatering centrifuge, screw press dewatering machine and chemical dosing unit.
Solids and liquid separation or liquid and liquid separation is always the topic when you need to treat waste, either precious solids need to be recovered or valuable liquid need to be thickened, or harmful oil should be removed, GN Solids Control always have the right equipment for you.

1.GN Dewatering Centrifuge
GN decanter centrifuge is effectively used to dewater different kinds of slurry, among various types of GN centrifuges, the T series is especially used to dewater sludge such as oil and gas drilling mud, oily sludge, mineral water, municipal or industrial wastewater, sludge from chemicals manufacturing company such as soda white mud or salt mud dewatering.
With a half cone angle of 8 degree, the rotating bowl is made of duplex stainless steel 2205or 2304, centrifuge solids discharge ports are embed with long time last wear resistance tungsten carbide tiles.

2.GN Dewatering Screw Press
GN Dewatering Screw Press is one of the most cost-effective treating unit, compared to decanter centrifuge it is way low budget is a big lure for many clients. Dewatering screw press uses an economical way to press the liquid out from the sludge.
Same with the decanter centrifuge, a pretreating equipment is needed to remove big particles. Dewatering screw press can work continously and automatically, ideal for the sludge concentration of between 2,000 mg/l to 50,000 mg/l.

3.GN Chemical Dosing Unit
When there are too much finer particles, a chemical dosing unit is very necessary to provide polymer together with the feed slurry into decanter centrifuge and dewater screw press. GN Solids Control has standard chemical dosing unit, equipped with dosing pump, and convenient to control on the smart control box.
GN Solids Control always has the right solution for you on solids and liquid waste separation.

Construction Slurry Dewatering System Working for North American Waste Management Company

Construction slurry comes from many activities, such as hydrovac excavation, horizontal directional drilling, tunnel boring, piling drilling etc. Usually this slurry is mixed with solids and liquid, which need to be delivered to liquid waste management company for further treating.
Before it might be OK to dig a pit and pour inside without doing anything, but not suitable or allowable under the new environmental protection rules. GN Solids Control has been helping thousands of client treat their slurry in an economical way and varies on the treated material sometimes GN helps client to set up a new business line with satisfying profit.

Construction Slurry Dewatering System Working in North America

GN Solids Control has been providing construction slurry dewatering system globally for many years, today we’d like to share one hydrovac slurry dewatering sytem that we provided to a North American client.

In the old days, hydrovac slurry need to be driven by fleet to a liquid waste company, and most of the treating equipment either takes too much energy or too large to treat, and need high maintenance. While by using GN hydrovac slurry dewatering system, hydrovac contractors find a cost-effective way to treat the slurry and recover sellable aggregates, sands, silts as reusable water.
Here are the main treating equipment in GN hydrovac slurry dewatering system: GN Coarse Shaker, GN Double Deck Shaker, GN Desilter Cyclone, GN Decanter Centrifuge, GN Chemical Dosing Unit and GN Mud Tank.
As we know thousands of clients have thousands of needs, everyone is special and deserve a tailored solids and liquid treating systems. When GN Solids Control provides a hydrovac slurry system, we send experience engineers to clients working sites and communicated thoroughly on all details. GN compact design hydrovac slurry dewatering system always meet clients’ demands. With more and more systems GN provided, we are more confident to provide a successful solution.
‘Before it is waste, now it is treasure. Nobody can imagine this before’, says one of hydrovac waste management CEO.

Construction Slurry Dewatering Equipment to Australia Company

GN Solids Control is a leading slurry treating plant solution provider. With more and more hydrovac excavation activities, a high demand on the construction slurry treating by hydrovac contractors and fleets.
GN Solids Control has provided many successful dewatering equipment to the world, such as US, Canada, Australia and New Zealand. As for this construction slurry dewatering equipment, it will be delivered to Australia very soon. It is mainly includes the following main treating components:

2021.09.23 Slurry Treatment System

1.Dewatering Coarse Vibrating Screen
Primary coarse vibrating screen is the first phase dewatering process, all big stones, branches, gloves etc are blocked on the top of the hopper, slurry fall through an automatic valve into coarse vibrating screen where opening mesh screens are fixed.

2021.09.23 Vibrating Screen
2.Dewatering Fine Shale Shaker  
A double deck shaker is used as the dewatering fine vibrating screen. Two sizes of solids removed from the slurry. Flushing nozzles and anti-spraying cover are optional components to keep the shaker deck from blocking after long time working.

3.Desilter Cleaner 
Desilter cleaner is shaker fixed with hydrocyclones, feed by sumbersible pump although sometimes centrifugal pump can be also used.
4 inch cylones can remove most of the solids larger than 25 microns. Usually after treated by GN dewatering fine shaker and desileter cleaner, we can get clean and dry sands and silts. As the hydrovac truck can carry solids and water at a very large different ratio, GN Solids Control also provides vacuum drying screen unit (GN ViST) to remove more water from slurry.

2021.09.23 Shale Shaker Tank
4.Big Bowl Dewatering Centrifuge
Centrifuge is the key treating equipment in this whole hydrovac slurry dewatering system. Centrifuge rotating bowl and screw propeller running at high rotating speed but at different direction, push the dry solids and recover clear water.
A chemical dosing unit is used to provide flocculant into the centrifuge, most of the solids larger than 2 microns can be removed by GN decanter centrifuge.