Pre-validated skid modules delivering stable effluent compliance, ultra-high salt concentration, and pure process water for Serbian and Balkan industrial hubs.
Semiconductor and micro-electronics grade UPW systems providing up to 18.2 MΩ·cm resistivity for advanced thermal power plants and electronic manufacturing in Novi Sad and Belgrade.
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Sanitary membrane filtration engineered to meet Serbian Official Gazette standard Rulebook on Hygienic Correctness of Drinking Water across Vojvodina food processing operations.
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High-specification RO-EDI sanitary skids integrated with fully automated thermal sanitization, designed to meet strict European Pharmacopoeia standards for Serbian pharma leaders.
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Advanced physical membrane degassing systems preventing downhole casing corrosion in high-salinity oilfield water reinjection across Kikinda and Banat exploitation fields.
View Product SpecsNavigating the complex hydrogeological and hydrochemical demands of the Pannonian Basin, evolving EU Chapter 27 accession benchmarks, and heavy industrial growth.
Serbia's primary oil and gas production fields—predominantly located in northern Vojvodina (Banat and Bačka basins around Kikinda, Zrenjanin, Elemir, and Mokrin operated under NIS Gazprom Neft)—exhibit unique reservoir hydrochemistry. Produced water originating from the Neogene and Miocene sedimentary strata is characterized by elevated thermal levels (40°C–75°C), high organic load (aliphatic hydrocarbons, naphthenic acids), high silica concentrations, and volatile chloride and bicarbonate contents ranging from 8,000 mg/L up to 45,000 mg/L TDS.
Conventional settling ponds and API gravity separators no longer satisfy modern reservoir management standards or environmental directives. Re-injecting unconditioned, oil-laden saline water induces rapid downhole scaling (calcium carbonate, barium sulfate) and reservoir clogging. Tongjie addresses this with targeted pre-oxidation, dissolved gas flotation (DGF), and Disc Tube Reverse Osmosis (DTRO), capable of resisting high fouling conditions while delivering reinjection permeate with suspended solids under 1 mg/L and residual oil content under 5 mg/L.
| Water Parameter (Pannonian Basin Baseline) | Raw Produced Water Range | Tongjie Skid Effluent (Reinjection Grade) | Tongjie ZLD Distillate (Boiler Grade) |
|---|---|---|---|
| Total Dissolved Solids (TDS) | 12,000 – 48,000 mg/L | Under 1,500 mg/L (permeate) | < 10 mg/L |
| Free & Emulsified Hydrocarbons | 50 – 450 mg/L | ≤ 3 mg/L | Non-Detectable (< 0.1 mg/L) |
| Suspended Solids (TSS) | 60 – 350 mg/L | ≤ 1 mg/L | Zero |
| Silica (as SiO₂) | 40 – 120 mg/L | < 5 mg/L | < 0.05 mg/L |
Serbia’s continuous harmonization with European environmental benchmarks through Chapter 27 (Environment and Climate Change) has drastically altered industrial water obligations. The Serbian Regulation on Emission Limit Values of Pollutants in Water (Official Gazette of RS, No. 67/2011, 48/2012, and 1/2016) sets stringent boundary conditions for surface water discharge into critical drainage catchments such as the Danube, Sava, and Tisa river basins.
Whether handling refinery effluent in Pančevo, industrial chemicals in Šabac, or metal and mining process streams in Bor, operations face aggressive limits on chemical oxygen demand (COD), total petroleum hydrocarbons (TPH), phenols, and heavy metals. Tongjie’s engineered containerized water reuse and ZLD architectures are designed to enable industrial operators to bypass discharge restrictions completely via closed-loop water recovery loops of 85% to 98% efficiency.
Capitalizing on integrated industrial clusters, advanced metallurgy, and ISO/CE certified Shanghai manufacturing to counter European lead-time bottlenecks.
Unlike European regional assemblers who endure fragmented component lead times of 30–50 weeks, Tongjie leverages China's end-to-end industrial supply chain. Pressure vessels, duplex stainless steel (2205/2507), high-pressure pumps, Siemens/Schneider PLCs, and high-performance polyimide membrane sheets are directly mobilized within our domestic manufacturing cluster in Shanghai and Jiangsu.
Every skid-mounted plant undergoes a 72-hour full hydraulic load and hydrostatic pressure testing before ocean shipping. Piping, weld seam penetrant inspections, electrical loops, and sensor calibrations are fully documented according to CE Machinery Directive 2006/42/EC and Pressure Equipment Directive (PED) 2014/68/EU standards before shipping to the Port of Bar (Montenegro), Port of Rijeka (Croatia), or Port of Constanța (Romania) for direct transit to Serbia.
By engineering high-density modular skids and containerized units within an automated high-capacity Shanghai production facility, we deliver high-spec metallurgy (including Super Duplex 2507 and Titanium Grade 2 for high-chloride fluids) at a fraction of Western European EPC capex, reducing the pay-back timeline for Serbian projects from 5.5 years down to 2.2 years.
Typical Field Commissioning Time
Invention & Utility Patents
Treated Hydrocarbon Effluent
Max Water Recovery in ZLD Mode
Pioneering high-recovery membrane concentration, artificial intelligence predictive fouling monitoring, and low-energy thermal integration.
Integration of continuous transmembrane pressure (TMP) curve diagnostics with autonomous CIP dosing triggers. Our automated SCADA algorithms anticipate fouling rates from dynamic oil concentration surges in produced water, preventing irreversible membrane compaction.
Pushing hydraulic operating pressures to 120–160 bar. This allows produced water brine concentration to breach 120,000 mg/L TDS purely through mechanical membrane processes, shrinking the energy-intensive thermal evaporation stage by up to 60% compared to traditional MVR designs.
Transforming produced water from an environmental liability into a secondary resource stream. Advanced selective ion nanofiltration skids designed to recover high-purity lithium, bromine, and commercial sodium chloride salts from concentrated Pannonian and Balkan deep-well brine.
Explore our field-proven portfolio of skid-mounted and containerized water purification, desalination, and brine concentration systems.
High-reliability RO-EDI systems ensuring conductivity < 0.1 μS/cm and silica < 10 ppb for high-pressure power plant boilers and district heating networks.
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Fully self-contained, insulated 20ft/40ft shipping container units with integrated pretreatment, high-pressure SWRO membranes, and complete climate control.
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Closed-circuit water recycling skids recovering up to 90% of secondary industrial effluent for cooling tower makeup and chemical batching applications.
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Specialized DTRO and electrodialysis reversal (EDR) membrane units concentrating heavy saline reject streams prior to crystallization, cutting energy consumption.
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Fully sanitary 316L stainless steel skids incorporating ozone and UV sterilization stages for dairy, beer, and soft drink manufacturing plants.
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Targeted industrial membrane concentrators designed for zero liquid discharge compliance across mining operations, flue gas desulfurization, and chemical plants.
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Robust double-pass reverse osmosis combined with continuous electrodeionization modules, eliminating dangerous acid/caustic regenerant chemicals.
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Precision tailor-made skid packages incorporating mixed-bed, ultrafiltration, MBR, and DTRO technologies custom-fabricated to precise European EPC engineering specifications.
View Product SpecsDirect answers addressing technical sizing, transport logistics, regional environmental standards, and after-sales support.
