In a large electroplating park in East China, a well-known enterprise generates approximately 30 tons of high-concentration nickel-containing wastewater and RO concentrated water on a daily basis. The original treatment method of the enterprise was to outsource the disposal, which was not only costly (about 3,000 yuan per ton), but also posed environmental risks and policy compliance pressures. To achieve the goal of "zero wastewater discharge" and reduce costs and increase efficiency, the enterprise finally chose to cooperate with Baihuipu Environmental Protection. 

Solution

The environmental protection technology team of Baihuipu conducted on-site investigations and water quality tests, and then tailored a treatment plan specifically for it, with the "MVR Low-Temperature Evaporation Crystallization System" at its core: 

Processing objects: Nickel-containing wastewater from electroplating line, concentrated water from RO system. 

Process flow: Collection and adjustment → MVR low-temperature evaporation and concentration → Condensate water reuse → Nickel salt crystallization and precipitation. 

Core equipment: BHP-MVR-30 type low-temperature evaporation crystallization equipment. The main body is made of titanium to ensure long-term corrosion resistance. 

Operating effect and value realization 

Since the commissioning of this equipment system, it has been operating stably for more than a year and has achieved remarkable results: 

Environmental benefits (compliance and standards): 

The generated condensate water has clear quality and an electrical conductivity of less than 50 μs/cm. It can be directly reused in the production line, thus achieving the recycling of water resources. 

The nickel ions in the wastewater were concentrated and crystallized into solid hazardous waste, achieving the recovery and reduction of heavy metals. The volume reduction rate was over 95%, significantly reducing environmental risks. 

The enterprise successfully passed the environmental protection assessment and became a benchmark enterprise for "zero wastewater discharge" in the park. 

2. Economic benefits (cost reduction and efficiency improvement): 

Savings in huge disposal costs: The previous annual outsourcing disposal cost was approximately: 30 tons/day * 3000 yuan/ton * 300 days = 27 million yuan. 

Reduce operating costs: The current energy consumption of the equipment (mainly electricity cost) is approximately 150 yuan per ton of water. The annual operating cost is approximately: 30 tons/day * 150 yuan/ton * 300 days = 1.35 million yuan. 

Achieve astonishing profits: Just for wastewater treatment alone, this enterprise saves over 25 million yuan in costs annually! The investment payback period for the equipment is extremely short. 

Conclusion: This case vividly demonstrates that advanced environmental protection equipment is no longer merely a "cost center", but can be transformed into a powerful "benefit center". Baohupu Environmental Protection's low-temperature evaporation equipment, with its outstanding technical performance and reliability, is helping more and more customers like this electroplating enterprise, while fulfilling their environmental protection social responsibilities, to gain tangible economic returns. If you are also facing similar wastewater problems, this case might be the starting point for your transformation.