DMP Shows Aerospace Manufacturer the Value of Versatile Wastewater Systems
Posted February 12, 2016 Categories: Aerospace & Defense,Batch Treatment Systems,Water Reuse & Recycling
Wastewater treatment within aerospace manufacturing is rarely a one-step process. That’s true of the manufacturing industry at large, but especially for organizations that deal with heavy metals,
chemical finishes, and oil and grease, like aerospace and military manufacturing. Contaminants such as cadmium cyanide make it difficult for some manufacturers to meet strict discharge limits without investing in state-of-the-art technology. This is why it’s important for every aerospace manufacturer to work with experienced treatment providers who know exactly which systems are necessary.
Leaning Too Heavily on Evaporation
One southern California-based aerospace manufacturer had an existing evaporator-based wastewater treatment system. Rather than using pretreatment with automation prior to evaporation, all wastewater was sent directly to the evaporator. Evaporation without pretreatment created several problems:
- Higher wastewater concentrations required more energy for evaporation.
- TSS built up within the evaporator and required continual cleaning — about a week of downtime every month. Cleaning required additional labor, which reduced the company’s available workforce and flexibility.
- Sludge removal costs were high. By creating more sludge, the manufacturer unnecessarily increased its wastewater treatment costs.
- The process took more time than necessary.
Bottom line: without an effective pretreatment wastewater system, the company was paying more than it needed to for a less effective solution.
Multi-Step Process is Key
Treatment was becoming unacceptably expensive and less effective than required, plus an efficient means of cadmium cyanide destruction was needed. For those reasons, the manufacturer turned to the experts at DMP Corporation. DMP has a long track record of wastewater treatment results within aerospace and military manufacturing, including the unique aspect of cyanide treatment.
DMP quickly saw that simply sending wastewater to the evaporator was not an efficient practice. In this case, less technology and equipment meant higher costs, greater maintenance and poor results. Instead, DMP’s team showed the manufacturer how it could optimize its evaporator with better feed water and by using the method as a step in the process, not a one-stop solution. Using ion exchange for water recycle and batch treatment for solids removal means that wastewater is now clean enough for effective evaporation.
More Technology Can Actually Lead to Lower Overhead
It’s understandable to think that adding a process will create higher costs and maintenance, but in this case, the opposite was true. By relying less on the evaporator and more on an integrated, automated wastewater treatment platform, the company expects to reduce O&M costs by 25 to 30 percent.
But it wasn’t just about making the evaporator more effective and less costly. By incorporating new technologies like ion exchange for water recycle and batch treatment for solids removal, and by understanding more about the entire wastewater treatment process, the aerospace manufacturer can focus more time and money on its operations and less on its wastewater solutions.