Tannery mill has been considered as one of the most polluting Industries as it releases large source of hazardous wastes and pollution. This therefore warrants an immediate inventory on matters of waste generation and methods currently in place to manage such wastes. The major public concern over tanneries has traditionally been about odors and wate pollution from untreated discharges. Some of these pollutants are frequently toxic and persistent, and affect both human health and the environment. Various chemicals are commonly used in different stages of tannery processes. The right choice of chemicals and the proper application of these chemicals will give significant impact not only to the quality of the end products and process efficiencies, but also to the quality of waste released and the mill’s pollution levels.
The need for cleaning chemicals - Cleaning chemicals are used in tannery process for removal of common deposits and contaminants. The proper selection of cleaning chemicals will help to:
- Reduced levels of rejects / off-grade products
- Reduced downtime required for cleaning
- Minimization of environmental concerns
- Increased equipment life
- Increased compatibility with substrates
- Increased bath life
- Energy savings
Amazon Papyrus has a range of cleaning chemicals with the aim to provide the most appropriate cleaning program and monitoring which ensure safe, effective and consistent results. Our cleaning products are specially formulated to address various deposits / contaminants commonly found in leather / tannery processes, including:
- Alkaline and Acid base cleaners
- Neutral based cleaners; solvent, dispersant, or chelant base
- Halogen free-oxidant type cleaners
The use of neutral base cleaners are getting more popular as it is easier to rinse, minimize the needs of pH neutralization prior to discharge, less corrosive to materials of construction, and reduce the energy required to heat the bath as no scaling found in heating coils (as commonly found with alkaline solution).
The use of halogen free-oxidant eliminate the release of Chlorides or Bromine which can be hazardous to aquatic life. This oxidant cleaner is also more effective in removal of various meat and fat residues commonly trapped inside the pressing felt, hence improving the water / misture removal during leather pressing.
Our team of professionals would work with you to select the most appropriate products and design the cleaning application technology to meet your specific needs. Our on site monitoring also help to ensure safe application of the program and cost effective treatments.
Leather and tannery processes uses materials rich of proteins and fats, and is known for its particularly high gas emissions. The odors coming from these materials are often high enough to cause nuisance and discomfort. Removal of odour from wet processing sections of leather tanneries is important to preserve safety and occupational health. Such odour causing gases are identified in nature and are identified mostly as ammonia, Hydrogen sulfide and Volatile organic compounds. Identifying causes of odors and implementing corrective action is paramount for the survival of the industry while maintaining efficient production process.
Amazon uses the combination of water phase and air phase treatments to control the odor emission in leather / tannery processing.
Our Odor control product range for Leather / tannery application comprise of :
Air phase-Odor neutralizer. The product is a proprietary formulation of several essential oils and a food grade surfactant that neutralize the unpleasant odor by reacting with the odorous chemistries and neutralize them. It is biodegradable and totally safe to people, animals, and plant life.
Fragrance. These scented versions of AmiSense provide the user with pleasant odors that suppress / substitute the unpleasant odors in the treated air. Instead of neutralizing the malodor thereby yielding no odor, these new products neutralize the malodor and leave a subtle floral / herbal / fruity scent behind.
Organic base H2S and mercaptan scavenger can be sprayed inside a wet scrubber to effectively minimize the fusitive H2S and mercaptans emission to environment
H2S & mercaptan scavenger for water phase.
Amazon has different choices of H2S scavernger in water phase. This includes:
- fast acting oxidizing chemical which can be fed alone with simple feed equipment without addition of Sodium Hypochlorite,
- Organic base H2S and mercaptan scavenger which can be used wit minimum impact to aquatic microorganisms in ETP
- metal salt coagulant for the neutralization of hydrogen sulfide odor in waste water treatment plant. This product reacts with H2S to form blackish, odorless, metallic precipitants to be carried away with the sludge.
Before and After Cleaning
Before and After Cleaning