Tailored to your industry, wastewater composition and treatment needs, Conqinphi offers one-stop customized evaporation solutions—from design, manufacturing to delivery, installation and after-sales.

In the evolving landscape of industrial wastewater treatment, the demand for efficient, cost-effective solutions has never been higher. One such solution gaining traction is the Sodium Chloride and Sodium Sulfate Single-Effect Evaporator, a critical technology for treating high-salinity and highly corrosive wastewater.

In industrial applications of sodium sulfate wastewater treatment and recovery of anhydrous Na₂SO₄ (sodium sulfate), the common approach is "evaporation and concentration → recrystallization and separation." Core equipment options include MVR (Mechanical Vapor Reduction), multi-effect evaporation, or cryogenic routes. Based on steam utilization and crystallization methods, five typical processes can be identified. The following section, based on the latest engineering cases and operational data, systematically outlines the flow, energy consumption, applicable scenarios, and design considerations for each process.

What are the optional processes for ammonium chloride evaporation and crystallization equipment?industrial ammonium chloride evaporation-crystallization processes can be broadly categorized into two types: "evaporation and concentration followed by crystallization and separation." Each route offers various equipment combinations and can be further subdivided based on steam utilization and crystallization methods.

In the new energy lithium battery industry, choosing the right evaporator depends primarily on specific process requirements and application scenarios.

Concentrated brine evaporation and crystallization devices come in various types, which can be classified according to four dimensions: "evaporator type," "crystallization method," "steam utilization method," and "whether membrane technology is coupled."

In industrial brine "zero-discharge" processes, the MVR evaporator only undertakes the "main concentration" task, turning 99% of the water into clean condensate for reuse. However, it cannot overcome the final bottleneck of "mother liquor." The mother liquor dryer (also called a mother liquor drying machine, scraper/drum dryer) is designed to completely solve the mother liquor problem. In engineering, both are generally combined in a "three-stage" closed-loop configuration.

When using evaporation crystallization for high-ammonia nitrogen wastewater, the mainstream processes can be categorized into three types: multi-effect evaporation (MEE), mechanical vapor recompression (MVR), and low-temperature vacuum evaporation. All three can convert ammonium salts from the liquid phase to the solid phase, but they differ significantly in energy consumption, steam dependence, ammonia escape control, investment intensity, and operational flexibility.

Evaporation crystallization technology essentially works by heating the wastewater to vaporize the solvent (mainly water), thereby continuously increasing the solution concentration and ultimately driving the precipitation and crystallization of the solute. This technology has demonstrated formidable capabilities in treating high-salinity wastewater. From a technological classification perspective, multi-effect evaporation crystallization (MEE) is a key member. It cleverly connects multiple evaporators in series, with the steam generated by the previous effect acting as a relay baton, becoming the heat source for the next effect, achieving highly efficient utilization of thermal energy. Its operation is simple and its application flexible, adapting well to both large-scale industrial wastewater treatment scenarios and smaller-scale treatment needs.