Pulp and paper mills produce large amounts of liquid and solid waste from their pulping and papermaking processes. Liquid waste is characterized by high levels of biochemical oxygen demand, suspended solids, and chemical oxygen demand. Solid waste includes treatment sludge and fly ash. Wastewater treatment involves neutralization, screening, sedimentation, and activated sludge or anaerobic fermentation to remove organic content. Sludge is dewatered and combusted. Alternative technologies also exist for sludge disposal and wastewater treatment.
Wastewater treatment using membrane bioreactorsHarishwar R
Membrane Biorector is an advanced technique which combines the power of membrane separation with Conventional Water Sludge Treatment Process. The Presentation deals about the two major configurations of MBR and their advantages and disadvantages.
Wastewater Treatment for Sugar Industry Hülya Pala
I decided to share my another presentation about wastewater treatment which is especially about sugar industry to be beneficial for you.( The link for slide 5: https://www.youtube.com/watch?v=EP_fgp7zYKk)
Membrane bioreactors for wastewater treatmentwwwtwastewater
Membrane bioreactor (MBR) is the combination of a membrane filtration process with a suspended growth bioreactor. It is a very advanced technology and is now widely used
for municipal and industrial wastewater treatment.
Wastewater treatment using membrane bioreactorsHarishwar R
Membrane Biorector is an advanced technique which combines the power of membrane separation with Conventional Water Sludge Treatment Process. The Presentation deals about the two major configurations of MBR and their advantages and disadvantages.
Wastewater Treatment for Sugar Industry Hülya Pala
I decided to share my another presentation about wastewater treatment which is especially about sugar industry to be beneficial for you.( The link for slide 5: https://www.youtube.com/watch?v=EP_fgp7zYKk)
Membrane bioreactors for wastewater treatmentwwwtwastewater
Membrane bioreactor (MBR) is the combination of a membrane filtration process with a suspended growth bioreactor. It is a very advanced technology and is now widely used
for municipal and industrial wastewater treatment.
Pulp and Paper Manufacturing and Treatment Of Waste Water
is About:
What is Fiber?
Lignin?Hemicellouse?
Real Explanation of Photosynthesis?
SEM (Scanning Electronic Microscope) Pictures of Trees
Can Plants Survive in Green Light?
How the Pulp is Produced from The Trees (Video) ?
Can We Use Other Than Trees for Pulp Preparation?
Some Information about Locally Located oldest Paper Mills
How the Waste Water Treated from Industries?
Pulp and Paper Manufacturing and Treatment Of Waste Water
is About:
What is Fiber?
Lignin?Hemicellouse?
Real Explanation of Photosynthesis?
SEM (Scanning Electronic Microscope) Pictures of Trees
Can Plants Survive in Green Light?
How the Pulp is Produced from The Trees (Video) ?
Can We Use Other Than Trees for Pulp Preparation?
Some Information about Locally Located oldest Paper Mills
How the Waste Water Treated from Industries?
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Paper industry Presentation
Things you want to include in this Presentation.
This presentation includes:
Paper History
Paper Making in China
Paper Making in Japan
Paper Making in Arabs
Paper Making in Europe
Definition of Paper
Requirement for Paper Making Industry
Manufacturing Method
Flow Chart of NSSC Paper Making Industry
Process For Paper Manufacturing
Application of Papers
Types of Paper
Energy Usage in Paper Making industry
Waste Generation Points
Air Pollution
Sources of Waste Water
Pollutants in Effluents
Treatment of Pulp and Paper Mill Waste
Recovery Process
Biological Treatment By Stabilization Ponds
Polymer induced Flocculation
Environmental Problem
How To Protect our Environment From
Hazardous of Paper industry
Organic Solvent Pulping
Acid Pulping
Biopulping
Elemental Chlorine Free (ECF) Bleaching
Management and disposal of solid wastes
Anaerobic Digestion
Composting
Steam Reforming
Wet Oxidation
Treatment of gas emissions
“How is the paper industry planning to reduce its carbon footprint?”
Recycling of Paper
hazardous waste mangement in pulp and paper industryarvind kumar
While there is little doubt that humankind’s increasing of natural law has brought us
increased life expectancy and higher quality of life for more people than ever known
before. This has brought the risk of global calamity and impairment of human health.
Hazardous waste management has become an international problem. The
environmental and Human Health consequences of the residuals and wastes: not
understood and recognized. Developments in science, epidemiology, toxicology and
analytical chemistry enabled to recognize. Dioxins and Furan are the major toxic or
hazardous material produced from pulp and paper mill effluent.
The environmental impact of paper is significant, which has led to changes in industry and behavior at both business and personal levels. With the use of modern technology such as the printing press and the highly mechanized harvesting of wood, disposable paper has become a cheap commodity. This has led to a high level of consumption and waste. With the rise in environmental awareness due to the lobbying by environmental organizations and with increased government regulation there is now a trend towards sustainability in the pulp and paper industry.
Paper & pulp industry by er. sanyam s. saini (me regular) (2012-14)
Pulp and paper mill waste
1. PULP AND PAPER MILL WASTE
AJAY KUMAR VERMA
2010PCH 116
SANJAY VERMA
2010PCH 102
2. INTRODUCTION
Paper industry in India is the 15th largest paper industry in the world. It
provides employment to nearly 1.5 million people and contributes Rs 25
billion to the government's kitty. The government regards the paper
industry as one of the 35 high priority industries of the country.
The annual global paper and paperboard production was approximately
382.0 million tones in 2006. It is expected to increase to 402.0 million
tones by 2010 and 490.0 million tones by 2020
In India pulp and paper Industry is the sixth largest consumer in the
industrial sector
Main consumer of natural resources:
1 -Wood (as raw material)
2 -Fossil-fuel, electricity (as energy)
3 -Water
3.
4. OVERVIEW OF THE PULP AND PAPER PROCESS
The main steps in pulp and paper manufacturing are
Wood yard
Pulping
Bleaching
The significant environmental impacts of
the manufacture of pulp and paper result Paper
manufacture
from the pulping and bleaching
processes
5. This table presents the purpose of each one of the processes presented
before and the technologies used to reach their task.
PROCESS PURPOSE MAJOR TECHNOLOGIES
PULPING Convert wood chips of Chemical (Kraft, sulfite)-
wastepaper into fibers suitable digesters, mechanical – refiners,
for papermaking semi chemical – digesters &
refiners
CHEMICAL Recovery of inorganic Evaporation concentration
RECOVERY
(KRAFT
chemicals from spend pulping recovery boiler, causticizing,
PULPING) liquor and combustion of calcining.
organic residuals to produce
energy
BLEACHING Brighten of whiten pulps by Chlorine dioxide, oxygen,
using chemicals to selectively hypochlorite, peroxide, ozone, of
remove lignin. chlorination- upflow of
downflowtowers, vacuum
washers, pumps, mixers.
PAPER Prepare stock from pulp, Heat box, sheet forming table.
MANUFACTURE
sheet, dewater, dry, caleder
6.
7. WASTE CHARACTERISTICS
AIR EMISSIONS: SOLID
TRS (Total reduced sulphur ): 0.3-3 kg/ton of ADP (air dried
pulp)
particulate matter: 75–150 kg/t;
sulfur oxides: 0.5–30 kg/t;
nitrogen oxides: 1–3 kg/t
volatile organic compounds (VOCs): 15 kg/t from black liquor
oxidation.
Coal burning can emit fly ash at the rate of 100 kg/t of ADP
8. LIQUID WASTE:
BOD: 10–40 kg/t of ADP
total suspended solids: 10–50 kg/t of ADP;
chemical oxygen demand (COD): 20–200 kg/t of ADP
chlorinated organic compounds: 0–4 kg/t of ADP.
Waste water: 20- 250 m3 /t
SOLID WASTES:
Wastewater treatment sludge: 50–150 kg/t of ADP
Fly Ash 100 kg/t of ADP
9. WASTEWATER CHARACTERISTICS
• The volume & characteristic of waste depends on the type of
manufacturing process adopted & extent of reuse of water.
• Waste produced from digestion of cellulosic material is known as
“BLACK LIQUOR”. This contain lignin & a large amount of
unutilized chemicals.
• Waste liquor produced from paper mill is known as “White
water”, that contain fine fiber, alum, talc etc.
• Integrated pulp & paper mill employing Kraft process for pulping
produce waste water225-320 m3/ton of paper produced.
• Chemical composition of waste will depend on size of plant,
manufacturing process & material used.
• Generally the pulp & paper mill waste is characterized by very
strong color, high BOD, high suspended solid, high COD/BOD
ratio.
12. Wastewater treatment
To remove suspended solids:
• Neutralization
Screening
. Sedimentation
• Flotation
To remove the organic content:
More information:
www.sequencertech.com
* Activated sludge
* Aerated lagoons
* Anaerobic fermentation
Solid waste treatment
*dewatering of sludge
* combustion in an incinerator,
* bark boiler, or fossil-fuel-fired boiler
13. ALTERNATIVE TECHNOLOGY TO SLUDGE DISPOSAL
Combustion technology
Fluidized bed
Circulating fluid bed
Supercritical water oxidation
Destructive distillation
Microbial degradation(biodegradation)
14. references
Pratima Bajpai and Pramod K. Bajpai, 1994. Biological colour
removal of pulp and paper mill wastewaters. Journal of
Biotechnology, 33 (211-220).
Thompsona G., Swainb J., Kayb M.and Forster C. F, 2001.
The treatment of pulp and paper mill effluent: a review.
Bioresource Technology 77 (275-286).
http://www.paperindustry.com/paper-making-process.asp
http://www.paperonweb.com/pmake.htm
Industrial wastewater managrment- S.E.Jorgensen,
“Pollution Prevention and Abatement: Pulp and Paper Mills.”
Draft Technical Background Document. Environment
Department,Washington, D.C.