Approximately 85% of water, as per the industry experts, is used in Pulp and paper industry wastewater as process water, ensuing in comparatively large qualities of impure water and demanding the exercise of onsite wastewater treatment solutions.
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Pulp and paper industry wastewater treatment
1. The Things You Should Know About Pulp
and Paper Industry Wastewater
The two terms mentioned in the topic ‘pulp’ and ‘paper
industry’ are two different industries generally separated.
‘Pulp’ means raw material for paper industry whereas paper
industry generated various kind of wastewater. Paper recycling
industry is the third type of industry associated which same
kind of water.
2. With the regular use of water, the pulp and paper industry
wastewater generates large volumes of residual sludge and
wastewater in each step of manufacturing processes, attending
a number of issues in accordance to discharge, wastewater
treatment and sludge disposal. Nevertheless, with the
advancements in the treatment technologies, viable solutions
for Pulp and Paper manufacturers is suggested in terms of
solid water and wastewater management, including innovative
ideas for water recycle or reuse and resource revival.
Talking of the pulp industry production process, the pollutant
composition in the wastewater industry relies on the type of
raw material used. Hemp, sugar cane, straw, wood, and more,
are used for paper production. Certain basic procedures are
used to create pulp in an industrial way. The implementation
of the case can be without or with a bleaching process. Lignin
3. is destroyed if bleaching becomes a part of the production
process. The color relies upon different kinds of raw material
and wood which are used for the production. Because of the
use of chemical like chlorine dioxide and chlorine, this step is
a disadvantage to the environmental balance.
Approximately 85% of water, as per the industry experts, is
used in Pulp and paper industry wastewater as process water,
ensuing in comparatively large qualities of impure water and
demanding the exercise of onsite wastewater treatment
solutions. The treatment process includes two options- one is
the primary treatment where particulate matter or solids are
removed, and the second is the biological treatment process
where biodegradable organic matter is removed, reducing the
effluent toxicity.
4. Tertiary treatment technologies like UV disinfection,
membrane filtration, granular activated carbon and ion
exchange, can be additionally used to more effectively treat
waste matter to higher qualities.
The pulp and paper industry wastewater, since 1970’s, has
notably reduced the wastewater volume and hence the process
over the years has been thoroughly employed.
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