Anyone who has worked in the Yulin mining area knows that the groundwater pumped up there looks clear, but it's a nightmare to use: high mineralization, excessive salt content, pipes covered in scale within two months, cooling equipment corroded and peeling paint. Whether for production or workers' daily use, it simply doesn't meet standards. Many mining areas previously had rudimentary water purification systems that could only remove surface sediment; they couldn't remove deeper salts and hardness. In the end, money was spent, but the water quality remained substandard, leading to frequent downtime for repairs and unnecessary maintenance problems.
RO Reverse Osmosis Equipment
As a long-established local water treatment company based in Xi'an, DIEN Water Treatment has cultivated the Yulin mining area market in northern Shaanxi for many years. They have thoroughly understood the characteristics of groundwater quality in different mines and have specifically developed RO reverse osmosis equipment tailored to local conditions—a professional desalination system for mining groundwater. This equipment efficiently filters out soluble salts, calcium and magnesium hardness, heavy metal ions, and fine mineral dust impurities from water. Its long-term operation maintains a stable desalination rate, effectively tackling the challenging problem of groundwater desalination in mining areas. The treated effluent fully meets various standards for mine production water, equipment cooling and circulating water, and domestic water for factory workers.
Many mining areas previously encountered problems because they used ordinary civilian water purification equipment to handle the high salinity and hardness of the mining water, which ultimately proved unusable. DIEN's RO reverse osmosis equipment doesn't simply apply generic processes. Instead, it features a customized "pretreatment + deep desalination" combination optimized for the water quality of the Yulin mining area: first, multi-media filtration and precision security filtration layers thoroughly filter out mineral powder, silt, and colloidal suspended solids, preventing these hard impurities from scratching and clogging the core reverse osmosis membrane elements; then, the physical separation technology of the reverse osmosis membrane precisely traps various salts and scale ions, allowing only pure water molecules to pass through, achieving highly efficient deep desalination and fundamentally solving the long-standing problems of pipe scaling, equipment corrosion, and recurring water quality deficiencies.
DIEN offers a comprehensive range of equipment models and specifications, from small-scale plant water supply systems of tens of tons to large-scale centralized desalination systems for mines of hundreds of tons, covering the entire flow range. Moreover, they completely avoid the "one-size-fits-all" approach. Engineers will first visit the site to collect raw water samples at three different times for comprehensive testing. Taking into account the mining area's average daily water consumption and the size and conditions of the installation site, they will specifically optimize the equipment configuration, membrane module layout, and operation control system. This ensures complete adaptability to the complex water quality of the Yulin mining area, characterized by high salinity and high hardness, thus fundamentally preventing the headaches of poor compatibility, inconsistent desalination performance, and frequent malfunctions associated with generic equipment.
A former open-pit coal mine in Fugu County, Yulin, had encountered a similar problem: the TDS of the groundwater used in the mining area was consistently around 3200 mg/L (click to learn more: RO reverse osmosis equipment water standards, TDS requirements for pure water in the electronics/food industry), which is typical high-bitter water. To save time, they purchased a general-purpose reverse osmosis system from elsewhere. Within six months of operation, most of the membrane elements were clogged by mine dust and high-hardness scale, causing the desalination rate to drop below 70%. The cooling circulation system required manual cleaning of scale every two weeks, and the bottom of kettles used for boiling water for workers was covered in white marks. The total cost of replacing membranes and cleaning equipment alone exceeded 100.000 yuan, and production was delayed several times. Later, they contacted DIEN, whose engineers collected raw water samples for three consecutive days (morning, noon, and evening). They specifically adjusted the pretreatment manganese sand + softening dual-layer filter configuration, replaced the equipment with a fouling-resistant reverse osmosis membrane specifically adapted to high-bitter water, and even made the equipment angled on the side of the frame to fit the narrow space reserved for equipment in the mining area. After delivery, the entire system operated continuously for 28 months, maintaining a desalination rate consistently above 98%. During this period, only routine automatic flushing was performed; no membrane elements needed replacement, and the circulating cooling system never experienced scaling or clogging. Workers could simply turn on the tap to get qualified purified water. The mine manager calculated that the savings in maintenance and membrane replacement costs over the past two years alone amounted to nearly 200.000 yuan.
RO Reverse Osmosis Equipment
Considering the harsh working conditions of the mining area—dusty and humid—the entire unit is constructed from thickened, corrosion-resistant materials, making it resistant to rust even during long-term operation in an open-air factory. The intelligent, fully automatic control system automatically flushes membrane elements at set times, monitors effluent water quality in real time, and automatically alarms for minor problems. This eliminates the need for 24-hour dedicated personnel, significantly reducing subsequent manual maintenance costs. The standard long-lasting, anti-fouling reverse osmosis membrane is specially modified for the high-impurity water quality of the mining area, making it resistant to clogging and corrosion, with a significantly longer service life than ordinary membranes and an extremely low failure rate over long-term operation.
For many years, DIEN has been deeply involved in water treatment in the mining areas of northern Shaanxi. Its success is based on customized solutions that are truly adapted to local water quality, durable equipment, and readily available local after-sales service. Now it has become the preferred manufacturer for groundwater desalination in the Yulin mining area, truly helping mining companies achieve stable water use and efficient water conservation, so that they no longer have to spend extra money on water quality issues.
