Hot Topics
News
Compliance
Regulations
Ask the Experts
Directories
Resources
About
Search
Home

Pollution Prevention and Control Technologies for Plating Operations


Section 3 - Chemical Recovery

3.8 MESHPAD MIST ELIMINATORS

3.8.6 Performance Experience

Eight respondents to the Users Survey provided some detailed data covering their experience with the meshpad mist eliminator technology. A summary of their responses are shown in Exhibit 3-71 and discussed in this section.

  • Meshpad mist eliminators had the highest average satisfaction level among recovery technologies (4.1 on a scale of 1 to 5, with 5 being most satisfactory). Also, all respondents indicated that this technology satisfied the need for which it was purchased. The following is a breakdown of the reasons why shops purchased this technology (multiple responses given by some shops):
     To meet or help meet effluent regulations:........4
     To reduce plating chemical purchases:.............5
     To reduce the quantity of waste shipped off-site:.2
     To reduce wastewater treatment costs:.............2
     To improve product quantity:......................1
     Reduce emissions or meet air standards:...........3
      
  • The use of meshpad mist eliminators for chromium recovery generally did not impact production quality or the rate of production. The following responses were provided:
                Product Quality    Production Rate
     Improved         1                   1
     No Change        5                   5
     Decreased        0                   0
      
  • All plating shops providing responses indicated that, based on their experience with this technology, they would purchase the same type of equipment from the same vendor. The following is a breakdown of their responses:
     Purchase the same technology from the same vendor:.....7
     Purchase the same technology from a different vendor:..0
     Purchase a different technology:.......................0
     Do nothing:............................................0
      
  • None of the shops indicated that a meshpad mist eliminator was the cause of an effluent compliance excursion.
  • The major savings from the operation of a meshpad mist eliminator was the result of reductions in bath chemical use. The reported chemical savings ranged from $250 to $5,000 per year. One shop also reported a $1,000 per year savings due to reduced sludge disposal costs.

Next Section|Main Table of Contents|Section 3