PUMA.Safe Environmental Handbook Volume 1 - About PUMA

process equipment and floors (after sweeping or other dry cleanup). Some mills have reduced operating costs
substantially by installing water reuse systems.
Some dye-houses have successfully implemented heat exchangers in their wastewater stream and others realized a
closed water cycle by filtering and re-using their process water.
Suggestion for Pollution Prevention for Textile Mills- A Check List -
• Store dry materials, such as bags of salt or dye drums, off the floor and away from liquids by placing catch pans
beneath the material.
• Plug floor drains in material storage areas.
• Build curbs around storage areas to keep spills in and water out.
• Remove water supplies from storage areas.
• Use dry cleanup methods; provide brooms, vacuums, and absorbent.
• Provide suitable work areas, handling tools, and training to operators so they can avoid creating spills.
• Provide recipes for each mixtures.
• Provide measuring equipment, in addition to recipes, to operators.
• Optimize chemistry; correct temperature can reduce the use of salt and dye.
• One size does not fit all; use small volume equipment for small production runs.
• Place spring-loaded nozzles or timers on all water supplies to turn off when not used.
• Select valve and piping material to minimize corrosion and leaks.
• Avoid filling process equipment with water from unmetered hoses; place meters on water supplies feeding
process equipment.
• Use counter current or multi-stage rinsing to reduce water use.
• Reuse wastewater from other processes that do not require high quality water.
• Test incoming water supply for minerals or chemicals that negatively affect the process.
Figure 11: Example of counter current rinsing in fabric dying process
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