In September 2026, GN Solids Control completed the shipment of four complete drilling mud tank washing wastewater treatment systems to an African client. This order represents a significant advancement in the company’s ongoing expansion within the African market, where demand for environmentally compliant drilling waste management solutions has grown substantially in recent years.
The four systems are designed to address a specific operational challenge faced by drilling contractors across the continent: the safe and efficient treatment of wastewater generated during the routine cleaning of mud tanks. Traditional methods of disposing of this wastewater often involve open pits or uncontrolled discharge, both of which carry significant environmental and regulatory risks. The systems supplied by GN Solids Control provide a contained, mechanized alternative that treats the water on-site, allowing for reuse in future drilling operations or safe disposal.
Each of the four systems is built around a core processing train that begins with solids separation. Wastewater entering the system first passes through a shale shaker equipped with composite framework screens, which removes large particles and debris that could damage downstream equipment. Following this primary separation stage, the water moves through a series of hydrocyclones—desanders and desilters—that extract finer sand and silt particles. The final mechanical separation step utilizes a decanter centrifuge, which spins at high speed to remove ultra-fine suspended solids, producing a clarified liquid stream.
The chemical treatment stage complements the mechanical separation. Each system includes an automatic polymer dosing unit with three tanks, allowing operators to mix and inject flocculants and coagulants at precise concentrations. These chemicals cause suspended particles to aggregate into larger flocs, which the centrifuge can then remove more effectively. The dosing system supports both automatic and manual operation modes, giving the client flexibility depending on the specific wastewater characteristics encountered at each site.
Tank cleaning functionality is integrated into the system design. Each unit is equipped with rotating mud guns that generate high-pressure fluid streams capable of scouring tank walls and removing accumulated residues. This feature addresses a common pain point for drilling operators in Africa, where manual tank cleaning is both labor-intensive and hazardous. By automating the cleaning process and routing the resulting wastewater directly into the treatment system, the equipment reduces downtime and minimizes worker exposure to potentially harmful substances.
The systems are configured for rapid deployment in remote locations. They are mounted on standard skids with fork-lift pockets and lifting lugs, enabling easy transport via flatbed truck or container. On-site installation requires only basic utility connections: power, water supply, and a discharge point for the treated effluent. This plug-and-play design is particularly valuable for African drilling operations, many of which are situated in areas with limited infrastructure and where construction of permanent treatment facilities would be cost-prohibitive.
The African client that placed this order operates multiple drilling rigs across several countries and has previously purchased solids control equipment from GN Solids Control. Their decision to acquire four complete wastewater treatment systems in a single order reflects both their satisfaction with prior purchases and their need to standardize waste management practices across their various sites. The client’s technical team reviewed and approved the system design, which incorporates several modifications based on feedback from earlier projects in the region. These include reinforced electrical cabinets to withstand dusty environments, oversized screens to handle high solids loadings, and simplified control interfaces that reduce the training burden for local operators.
This shipment contributes to a broader trend of African drilling contractors investing in modern environmental protection equipment. Regulatory frameworks across the continent are becoming more stringent regarding drilling waste management, and operators are recognizing that proactive investment in treatment technology is more cost-effective than facing fines, cleanup orders, or project suspensions. The four systems supplied by GN Solids Control will enable this client to maintain compliance with national regulations while also improving their operational efficiency through reduced water consumption and faster tank turnaround times.
The transaction also underscores the growing capability of Chinese manufacturers to deliver sophisticated environmental engineering solutions to international markets. GN Solids Control has invested heavily in research and development, resulting in equipment that matches or exceeds the performance of Western competitors at a more accessible price point. The company’s ability to customize systems for specific regional conditions, combined with reliable after-sales support, has made them a preferred supplier for many African drilling contractors.
With this delivery, GN Solids Control continues to strengthen its position as a leading provider of drilling waste management technology in Africa. The successful commissioning of these four systems will likely generate additional orders from other operators facing similar wastewater treatment challenges across the continent.