Reduction of Colour from effluents of Pulp and Paper Industry by Ozonation: A Review

2021 ◽  
Vol 25 (12) ◽  
pp. 170-174
Author(s):  
Upendra Prasad Tripathy ◽  
Sunil Kumar Bishoyi
Keyword(s):  
Water Pollution ◽  
Paper Industry ◽  
Intermediate Stage ◽  
High Energy ◽  
Pulp And Paper ◽  
Effluent Treatment ◽  
The Novel ◽  
Paper Making ◽  
Chemical Inputs ◽  
Pulp And Paper Industries

Pulp and paper making is the major old process industry in India which is water intensive and generates heavy water pollution. Pulp and paper industries are the fifth largest contributor to industrial water pollution. Waste water is generated from each and every section of paper making process and depends upon the type of pulping and bleaching process. Presently, primary and secondary (Biological) treatment systems based on activated sludge process are widely used by paper industry for effluent treatment. The process requires high energy and chemical inputs and involves high operational costs. One of the novel processes for treating effluent is its oxidation through ozonation which is a greener way of degrading pollutants. Ozonation of intermediate stage effluents having high colour load is more effective for industrial application and re-utilization.

Capital Deepening and Technological Change: The Canadian Pulp and Paper Industry 1940–1960

1971 ◽  
Vol 1 (3) ◽  
pp. 159-166 ◽  
Author(s):  
G. H. Manning ◽  
G. Thornburn
Keyword(s):  
Technological Change ◽  
Production Function ◽  
Chemical Industry ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Plant Size ◽  
Pulp And Paper ◽  
Capital Deepening ◽  
Forest Industries ◽  
Pulp And Paper Industries

The pulp and paper industry is generally considered the most technologically progressive of the forest industries. A study employing Solow's method indicated a rise in the index of technological change of 50% between 1940 and 1960. This compares with a 547% increase for the chemical industry. Derivation of the capital production function for the pulp and paper industries shows that all increases in productivity, 1940–1960, were due to change in technology. There is also some indication that optimal plant size has been reached.

scholarly journals Trends and strategies in the effluent treatment of pulp and paper industries: A review highlighting reactor options

2021 ◽  
pp. 100077
Author(s):  
Kartik Patel ◽  
Niky Patel ◽  
Nilam Vaghamshi ◽  
Kamlesh Shah ◽  
Srinivas Murthy Dugdirala ◽  
...  
Keyword(s):  
Pulp And Paper ◽  
Effluent Treatment ◽  
Pulp And Paper Industries

scholarly journals Synthetic Organic Compounds From Paper Industry Wastes: Integrated Biotechnological Interventions

2021 ◽  
Vol 8 ◽  
Author(s):  
Shweta Jaiswal ◽  
Guddu Kumar Gupta ◽  
Kusum Panchal ◽  
Mandeep ◽  
Pratyoosh Shukla
Keyword(s):  
Organic Compounds ◽  
Paper Industry ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Waste Discharge ◽  
Synthetic Organic Compounds ◽  
Paper Mill Waste ◽  
Paper And Pulp ◽  
Pulp And Paper Industries ◽  
Benzene Compounds

Synthetic organic compounds (SOCs) are reported as xenobiotics compounds contaminating the environment from various sources including waste from the pulp and paper industries: Since the demand and production of paper is growing increasingly, the release of paper and pulp industrial waste consisting of SOCs is also increasing the SOCs’ pollution in natural reservoirs to create environmental pollution. In pulp and paper industries, the SOCs viz. phenol compounds, furans, dioxins, benzene compounds etc. are produced during bleaching phase of pulp treatment and they are principal components of industrial discharge. This review gives an overview of various biotechnological interventions for paper mill waste effluent management and elimination strategies. Further, the review also gives the insight overview of various ways to restrict SOCs release in natural reservoirs, its limitations and integrated approaches for SOCs bioremediation using engineered microbial approaches. Furthermore, it gives a brief overview of the sustainable remediation of SOCs via genetically modified biological agents, including bioengineering system innovation at industry level before waste discharge.

Improvement of Sludge Settleability in Activated Sludge Plants Treating Effluent from Pulp and Paper Industries

1999 ◽  
Vol 40 (11-12) ◽  
pp. 215-221 ◽  
Author(s):  
Kjær Andreasen ◽  
Jeanette Agertved ◽  
Jens-Ove Petersen ◽  
Henrik Skaarup
Keyword(s):  
Activated Sludge ◽  
Paper Industry ◽  
Treatment Plant ◽  
Pulp And Paper ◽  
Detailed Knowledge ◽  
Effluent Quality ◽  
Pulp Industry ◽  
Substrate Removal ◽  
Filamentous Microorganisms ◽  
Pulp And Paper Industries

The main objective of many activated sludge plants treating wastewater from the pulp and paper industry is to remove COD only. These plants are often designed as high-load aerobic systems without any microbial selector system. As a consequence the sludge settling properties are normally poor due to fast growing filamentous microorganisms, which severely reduce the treatment capacity and the effluent quality. Implementation of selectors, in which the substrate concentration and the metabolic pathways can be manipulated, has in many cases reduced the bulking sludge problems in activated sludge systems. An example of a successful upgrading of a Danish pulp industry wastewater treatment plant with an anoxic selector is presented. the use of a novel technique to investigate the in situ physiology of filamentous microorganisms is discussed. It is concluded that a successful application of selectors relies on detailed knowledge about: a) physiology and substrate requirement of the filamentous microorganisms, b) wastewater composition and c) substrate removal kinetics in the selector system.

Structural change and technical efficiency: a study of Indian pulp and paper industry

2019 ◽  
Vol 13 (1) ◽  
pp. 207-226
Author(s):  
Vinish Kathuria
Keyword(s):  
Technical Efficiency ◽  
Paper Industry ◽  
Structural Break ◽  
Pulp And Paper Industry ◽  
High Energy ◽  
Pulp And Paper ◽  
Original Research ◽  
Content Type ◽  
Frontier Analysis ◽  
Technical Parameters

Purpose The pulp and paper industry has been the focus of government policies ever since independence. This is the only industry where government plays a multi-dimensional role – not only as the regulator but also as the supplier of raw material and as the buyer. Despite the government's omnipotent role, there is evidence that industry is not very competitive, as it has very high energy and water intensity and poor productivity. A potent factor identified in the literature for the underperformance of the industry or for that matter any economy is the kind of technology used by the firms in the sector. This paper aims to look into the role of government policy in affecting the growth of the industry and what role embodied technology has played in influencing the efficiency of firms in Indian pulp and paper industry. Design/methodology/approach For the first question, the study uses 66 years of production data of the industry from 1951 to 2016 and tests for the structural break. For the second question, the study uses cross-section plant-level data for the year 2011-2012 of 160 paper manufacturing units to first estimate the stochastic production frontier (stochastic frontier analysis [SFA]) and then uses the output of SFA to find an association between embodied technology gap (TG) and technical efficiency. A methodological problem in earlier literature is the use of the productivity gap as a proxy for embodied TG. The present study uses technical parameters of papermaking – machine deckle and operating speed – to construct an index of TG. Findings The results show a structural break in the production trend occurring in 1999 with the delicensing in July 1997 as the possible cause. The SFA results show that the average technical inefficiency (TE) of the firms in the sector is 74 per cent with half of the firms having TE higher than 76 per cent. The study, however, does not find any impact of embodied TG on technical efficiency; rather it is the age, size, ownership and location that have an impact on it. Originality/value This is an original research, as the author has not come across any study in Indian context or elsewhere using technical parameters to construct TG variable.

scholarly journals Pulp and Paper Mill Fly Ash: A Review

2019 ◽  
Vol 11 (16) ◽  
pp. 4394 ◽  
Author(s):  
Chinchu Cherian ◽  
Sumi Siddiqua
Keyword(s):  
Fly Ash ◽  
Paper Industry ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Biomass Combustion ◽  
Pulp And Paper Mill ◽  
Current State ◽  
Pulp And Paper Industries ◽  
Combustion Processes ◽  
Efficient Mechanisms

The continual growth of pulp and paper industry has led to the generation of tremendous volumes of fly ash as byproducts of biomass combustion processes. Commonly, a major part of it is landfilled; however, updated environmental regulations have tended to restrict the landfilling of fly ash due to rising disposal costs and the scarcity of suitable land. The pulp and paper industries are therefore urgently seeking energy-efficient mechanisms and management for the beneficial use of fly ash in an ecological and economical manner. This paper offers a comprehensive review of existing knowledge on the major physicochemical and toxicological properties of pulp and paper mill fly ash to assess its suitability for various bound and unbound applications. The current state of various methods used for the valorization of pulp and paper mill fly ash into more sustainable geomaterials is briefly discussed. This paper also presents promising and innovative applications for pulp and paper mill fly ash, with particular reference to agriculture and forestry, the construction and geotechnical industries, and the immobilization of contaminants. It was identified from a literature review that modified pulp and paper mill fly ash can be environmentally and economically advantageous over commercial coal-based fly ash in various sustainable applications.

scholarly journals Pulp and paper production from oil palm empty fruit bunches: A current direction in Malaysia

2020 ◽  
Vol 1 (2) ◽  
pp. 1-9
Keyword(s):  
Oil Palm ◽  
Raw Materials ◽  
Paper Industry ◽  
Three Dimensional ◽  
Natural Fibre ◽  
Pulp And Paper ◽  
Raw Material ◽  
Cellulose Fibres ◽  
Paper Production ◽  
Paper Making

The pulp and paper industry is advanced rapidly since there are many types of raw materials containing cellulose fibres that could be used to produce different kinds of paper by different methods in the mills. In Malaysia, one of the abundant non-wood materials for pulp and paper production is empty fruit bunch (EFB) from the oil palm. The EFB is the main fibrous residue and natural fibre which has promising potential as an alternative to replace woody materials. This study provides insight into the use of EFB as an alternative non-wood fibre resource in pulp and paper making. The potential of oil palm EFB transformed into valuable fibre material was elaborated. In this review, detailed information on the properties of EFB for pulp and paper making process to identify the chemical composition and fibre morphology were discussed. Recent advanced applications including nanocellulose from EFB, polymeric hydrogel, and antimicrobial papers were discussed to demonstrate high commercialization for pulp and paper technology. The three-dimensional (3D) printing technique has been employed due to the high complexity of paper products. The future trends and challenges regarding the use of EFB in pulp and paper making were also reviewed. This study demonstrated that the EFB has met the demand of the market chains as a potential raw material in paper making and manufacturing.

scholarly journals The Ghost of Wesley Vale: Environmentalists' Influence on Innovation in Australia's Pulp and Paper Industry

1996 ◽  
Vol 1 (4) ◽  
pp. 379-401 ◽  
Author(s):  
David A. Sonnenfeld
Keyword(s):  
Government Regulation ◽  
Paper Industry ◽  
Pulp Mill ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
State Governments ◽  
Paper Mills ◽  
Elemental Chlorine ◽  
Pulp And Paper Industries ◽  
Archival Work

This paper analyzes how a key conflict in Australia's pulp and paper industry became generalized to other sites through environmental action, government regulation, and industry initiative. From 1987–91, Australians debated construction of a new, world-class, export-oriented pulp mill in Tasmania. Rural residents, fishermen, and environmentalists, allied with the Australian Labor Party, succeeded in scuttling the project. Subsequently, the national government launched a major research program, state governments tightened regulations, and industry reduced elemental chlorine use. Any new mills constructed in Australia today would be among the cleanest in the world. This paper is part of a larger, comparative study of technological innovation in the pulp and paper industries of Australia, Indonesia, Malaysia, and Thailand. The author interviewed industry officials, government regulators, research scientists, and environmentalists; visited pulp and paper mills; attended technical conferences; and conducted archival work in these countries during a 12-month period.

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