sludge treatment system – Drilling Mud Recycling System

GN Trenchless Mud Recycling Systems for Overseas Engineering Company

As global infrastructure development accelerates, trenchless technology and tunnel boring machine (TBM) operations have become indispensable for constructing pipelines, utility networks, and underground transit systems with minimal surface disruption. A critical factor determining the success, cost efficiency, and environmental compliance of these projects is effective drilling fluid and slurry management. GN Solids Control, a professional manufacturer of solids control equipments and customized mud tank system, has established a strong international presence by delivering customized trenchless mud recycling systems and TBM slurry separation plants to overseas engineering companies all of the world.

GN trenchless mud recycling systems are engineered to recover and reuse drilling fluids (typically bentonite mud) in horizontal directional drilling (HDD), pipe jacking, and piling operations. These systems reduce waste disposal costs, minimize environmental impact, and protect high-pressure drilling equipment from abrasive solids.

The GN C Series represents a flagship solution for medium to large-scale drilling operations. Unlike basic economy models, the C Series integrates mud recycling, storage, and mixing functions into a single, self-contained package, eliminating the need for separate storage tanks and mixing equipment. Available models include:

GNMS-200C: 200 GPM (50 m³/h)
GNMS-400C: 400 GPM (100 m³/h)
GNMS-600C: 600 GPM (150 m³/h)
GNMS-1000C: 1000 GPM (200 m³/h)

For slurry shield tunneling and pipe jacking projects, GN manufactures complete TBM slurry separation plants designed to handle the large volumes of slurry mixed with sand and stones generated during excavation. These plants are engineered to deliver high-performance solid-liquid separation, maintaining tunnel face stability, reducing cutter wear, and ensuring smooth TBM operation.

GN TBM slurry separation plants are available in multiple configurations to suit different tunnel diameters and project scales:
GNTBM-260B: 260 m³/h processing capacity
GNTBM-360B: 360 m³/h processing capacity
GNTBM-500B: 500 m³/h processing capacity

If you need a customized solution for mud recycling system and TBM slurry separation plant, pls contact with GN solids control.

GNTBM-500B Slurry Separation Plant for Middle East TBM Project

One complete set of GNTBM-500B Slurry Separation Plant are ready for shipment for Middle East TBM project. The technical specifications are as below:

Treating capacity: 500m3/h
Cut point: 15 ~30 microns
Mud cleaner: GNZS1836-2C, the bottom shaker model is GNZS1836 with 2pcs of 20 inches desander cones and 14pcs of 6 inch desilter cone, there are 2 units of 90KW feeding pump to feed the TBM slurry to desander cone and desilter cone, the lower deck screen area is 6.48m2 and upper deck screen area is 6.48m2.
The effective volume of the mud tank is 25m3.
The shipping dimension: the GNTBM-500B slurry separation plant can be shipped in 3 parts, the bottom part dimension is 6058x2438x2800mm, the middle part dimension is 6058x2438x3200mm, the top part is 4058x2438x1750mm.
Features of GNTBM-500B Slurry Separation Plant:

• Smaller footprint – ideal for confined urban construction sites
• Faster assembly and disassembly – reducing setup time
• Easier transportation – between job sites as projects progress
• Rapid deployment – minimizing downtime and maximizing productivity
The GNTBM-500B Slurry Separation Plant represents a significant advancement in TBM slurry management technology. With its 500 m³/h processing capacity, comprehensive three stage separation system, modular design, and adaptability to harsh Middle Eastern conditions, it provides tunneling contractors with a reliable, efficient, and cost effective solution for slurry shield tunneling operations.
As the Middle East continues to invest in transformative infrastructure projects, the GNTBM-500B slurry separation plant will play an essential role in enabling these ambitious undertakings while promoting environmental sustainability through effective slurry recycling and waste reduction
Except for modular design GNTBM-500B slurry separation plant, GN Solids Control also produce GNTBM-260B slurry separation plant and GNTBM-360B slurry separation plant, and also 800 m3/h, 1000 m3/h, 1500 m3/h slurry separation plant. If you need a customized and modularized TBM slurry separation plant, pls contact with GN solids sales.

3rd Unit! 30,000BBL Offshore Liquid Mud Plant to South America – Repeat Orders Prove Strength

Recently the third unit 30000bbl offshore liquid mud plant are ready for delivery to South America, this is a repeat order from our old client, we have provided 2 units of liquid mud plant successfully in the past years, the first unit is 45000bbl LMP, the second unit is 30000bbl LMP. All of them are under operation and the user is satisfied with its performance.

The features of GN liquid mud plant:
1. 30000bbl high capacity, built for offshore project, with stable and reliable mud supply.
2. Different phase separation to meet client’s requirement, shale shaker is to separate coarse solids, middle speed decanter centrifuge is for barite recovery, the high speed decanter centrifuge is to separate low gravity solids, also we can provide VFD decanter centrifuge from 0 to 3200rpm for different size solids separation. The dual centrifuge separation system can provide reliable separation of the collected drilling fluids from jobsite.

3. Mixing ,storage, separation, pumping multiple functional liquid mud plant, a fully integrated, all in one , safe and powerful. The high shear mud mixing system can provide high mixing capacity for chemicals.
4. The explosion proof control system for the whole system

5. The entire liquid mud plant is built on a modular design philosophy, with each module engineered for fast lifting, precise fit, and easy integration onto offshore platforms or supply vesselsRepeat orders to build client’s trust, rich experience to design and produce customized liquid mud plant, both for rectangular tank and vertical cylindrical tanks.

As an experienced manufacturer of solids control and drilling cuttings treatment systems in China, GN solids control can produce customized design solids control system mud tanks, liquid mud plant, drilling cuttings treatment system, oil sludge treatment system and other mud recycling system. For more information, pls contact with GN solids control.

GN Containerized Oil Sludge Treatment Plant for Africa Client

GN Solids Control has successfully supplied a fully containerized oil sludge treatment system to an African client. This compact, skid-mounted plant is designed to treat oily waste from crude oil tank cleaning, refinery ponds, and drilling operations. The system enables the recovery of valuable oil, recycles water, and significantly reduces solid waste volume—all while meeting stringent environmental standards.
The entire plant is integrated into standard shipping containers, making it ideal for Africa’s infrastructure conditions where ease of transport, rapid deployment, and relocation between sites are critical. The modular design also allows future expansion and simplified maintenance.

The system consists of four core modules:
(1) Pre-Mixing Tank Module
The pre-mixing tank module is the first step in the treatment process. Raw oil sludge often has high viscosity, high solids content, and poor fluidity. This module heats, dilutes, and conditions the sludge to create a homogeneous slurry suitable for downstream separation.

(2) Shale shaker Module
After pre mixing, the sludge still contains large debris, stones, and coarse sand. If these particles enter the centrifuge directly, they will cause accelerated wear and reduce separation efficiency. The vibrating screen module removes these oversized solids as a protective step.
(3) Three Phase Decanter Centrifuge Module
Including three phase decanter centrifuge, its feeding pump, fluids catching tank and skid. This is the core separation unit of the entire plant. The three phase decanter centrifuge simultaneously separates oil, water, and solids from the conditioned sludge using high centrifugal force. It is particularly suitable for oily sludge with wide fluctuations in oil content and complex compositions.

(4) Chemical Dosing Module
Effective chemical treatment is essential for breaking emulsions and enhancing separation efficiency. The chemical dosing module automatically prepares and injects flocculants, coagulants, and demulsifiers into the process stream.
If you need a customized solution of oil sludge treatment system, pls contact with GN solids.

GNTBM-500 Underground Engineering Slurry Separation Plant for Asia

GNTBM-500 TBM slurry separation plant is a high performance mud treatment system for Construction Engineering.

Modern construction and civil engineering projects—such as bored piling, diaphragm walling, and tunnel boring—generate large volumes of engineering mud. Efficiently treating the slurry is critical for both project economics and environmental compliance. The GNTBM-500 is designed to meet this challenge head-on.
Features of GNTBM-500 slurry separation unit including:
1. GNTBM-500 can efficiently treat construction engineering mud with a processing capacity of up to 500 cubic meters per hour.

2. Three stage separation for Cleaner, Faster and Smarter.
The first stage separation is coarse solids separation shale shaker, which is the lower deck of the double deck shale shaker, the second stage separation is desander cone, the third stage separation is desilter cone, the top layer shaker screen is as the mud cleaner shaker screen to dry the discharged solids.
3. Integrated tanks and VFD control — stable and energy-efficient.
The GNTBM-500 comes with integrated mud tanks and Variable Frequency Drive (VFD) control. The built-in tanks simplify site layout and reduce external piping, while VFD technology allows precise adjustment of pump and centrifuge speeds. This combination delivers stable mud circulation under varying load conditions and significantly cuts power consumption—lowering your operating costs and carbon footprint.

4. Compact & Modular : Ready for rapid deployment
Space and time are often limited on construction sites. The GNTBM-500 features a compact, modular design that can be easily transported in standard containers or flat-rack units. On arrival, it requires minimal assembly and can be operational within hours. For contractors working on urban projects or remote sites with tight schedules, this rapid deployment capability is a game-changer.
Except for 500m3/h TBM slurry separation plant, GN also produce different treating capacity TBM slurry separation plant, like GNTBM-260B, GNTBM-360B, etc, pls contact GN solids fo