Review
Environmental Sciences
Marcio Daniel Nicodemos Ramos, Angelica Santos Rangel, Karina Siqueira Azevedo, Maria Gabriela Batista Melo, Maria Caroline Oliveira, Camila Miwa Uchida Watanabe, Fernanda Ferreira Pereira, Claudio Mudadu Silva, Andre Aguiar
Summary: Pulp and paper industries are important for developing the Brazilian economy, but the effluents generated have high polluting potential. This study reviewed extensively the characteristics of effluents and treatment forms adopted by Brazilian mills. It was found that raw effluents differ considerably in composition, while secondary effluents usually comply with Brazilian legislations.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Review
Environmental Sciences
Tomi Turner, Rebecca Wheeler, Ian W. Oliver
Summary: Over 400 million tonnes of board and paper are produced globally each year, generating 4.3-40 kg of sludge-like material, known as pulp and paper mill sludge (PPMS), per tonne of product. PPMS, with its high organic content and low toxicity, is being increasingly used as a soil amendment in agriculture. This review explores the benefits, potential impacts, and viability of land spreading PPMS, suggesting that risks can be mitigated and that the practice is environmentally responsible. However, further research is needed to assess long-term implications and the presence of emerging contaminants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Agricultural Engineering
Daiane Cristina Diniz Caldeira, Claudio Mudadu Silva, Antonio Jose Vinha Zanuncio, Jose Roberto Rosado Correa Filho
Summary: The objective of this study was to assess the suitability of using nanofiltration retentate from thermomechanical pulp (TMP) effluent for fertirrigation. The retentate's electrical conductivity, metal ion concentration, and chloride content were evaluated, along with its potential risks and compliance with different international irrigation standards. The results showed that the retentate met the criteria for Class I irrigation water according to American and European standards, while being classified as Class III according to Brazilian standards. Therefore, it cannot be used for fertirrigation based on American and European standards, but can be used for irrigation of certain crops and as a source of nutrients according to Brazilian standards.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Environmental
Shabana Bhatti, Robert Richards, Patrick McGinn
Summary: Microalgae have gained interest as feedstock for various marketable products due to their fast growth potential and high nutrient content. However, industrial wastewaters may not be suitable for microalgal cultivation due to insufficient nutrients, color and turbidity issues, and potential toxicity.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Paper & Wood
Thabisile Brightwell Jele, Bruce Sithole, Prabashni Lekha, Jerome Andrew
Summary: Three different pulp and paper mill sludge samples from South African mills were characterized to determine their suitability for various beneficiation pathways. The characteristics of the sludge varied depending on the pulping technique, raw material, and effluent treatment used. From the analysis, it was found that different beneficiation pathways were more suitable for each type of sludge based on their specific characteristics.
Article
Environmental Sciences
Oxana N. Fedyaeva, Sergey Morozov, Anatoly A. Vostrikov
Summary: This study investigated the oxidation of watered toxic waste from the pulp and paper industry in supercritical water-oxygen fluid, revealing that only CO2, CO, N2, and N2O were detected in volatile oxidation products at higher oxygen content. Increasing the oxygen ratio led to a decrease in phenols and chlorophenols produced, with 2,6-dichlorophenol and 2-chlorophenol being the most resistant to oxidation.
Article
Environmental Sciences
Damjan Balabanic, Metka Filipic, Aleksandra Krivograd Klemencic, Bojana Zegura
Summary: Some endocrine disrupting compounds in wastewater exhibit genotoxic effects on cells but not mutagenicity on Salmonella typhimurium. The genotoxic activity induced by compounds detected in effluents from paper mills with recycled fibers is significantly higher than that of artificial mixtures, possibly due to the presence of unknown compounds. Wastewater monitoring based solely on chemical analysis is insufficient for assessing genotoxic activity in real environmental samples.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Kimmo Rasa, Taina Pennanen, Krista Peltoniemi, Sannakajsa Velmala, Hannu Fritze, Janne Kaseva, Juuso Joona, Risto Uusitalo
Summary: The study demonstrated that organic sludges from the pulp and paper industry can improve soil fertility and reduce erosion in agricultural soils. Although the application of these organic amendments had minimal effects on cereal yield and quality, it significantly altered the fungal and bacterial composition in the soil. Additionally, the amendments were effective in reducing suspended solids and total phosphorus concentrations in percolation water, even four years after application.
JOURNAL OF ENVIRONMENTAL QUALITY
(2021)
Review
Environmental Sciences
Amit Kumar, Nirmal Kumar Srivastava, Poonam Gera
Summary: The removal of color from paper mill wastewater is a crucial issue that remains unresolved. Researchers have been exploring various methods, but have not yet found an effective method applicable on an industrial scale.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Green & Sustainable Science & Technology
Shule Wang, Yuming Wen, Henry Hammarstrom, Par Goran Jonsson, Weihong Yang
Summary: The study found that the hydrothermal carbonization of paper mill sludge (PPMS) resulted in a higher average activation energy for pyrolysis, and the concentration of monocyclic aromatic hydrocarbons in the organic liquid fraction increased with the pyrolysis temperature. The highest yield and highest heating value of the organic liquid fraction were achieved at 550 degrees Celsius, and the pyrolytic chars showed potential for use as a carbon sink.
Review
Green & Sustainable Science & Technology
Gladys Vidal, Yenifer Gonzalez, Benjamin Pina, Mayra Jarpa, Gloria Gomez
Summary: Kraft pulp mill effluents are known for their high content of suspended solids, organic matter, and color, as well as harmful compounds, making treatment difficult. With the exacerbation of environmental issues under climate change, there is a need to focus on wastewater treatment technologies to achieve sustainability.
Review
Biotechnology & Applied Microbiology
Adane Haile, Gemeda Gebino Gelebo, Tamrat Tesfaye, Wassie Mengie, Million Ayele Mebrate, Amare Abuhay, Derseh Yilie Limeneh
Summary: This review investigates the availability of biomass from pulp and paper mills and shows sustainable routes for the production of high value-added biomaterials. Various biomaterials can be obtained from pulp and paper mill wastes for versatile applications through customization and optimization of the conversion techniques.
BIORESOURCES AND BIOPROCESSING
(2021)
Article
Soil Science
Mari Raty, Maarit Termonen, Helena Soinne, Johanna Nikama, Kimmo Rasa, Mikko Jarvinen, Reijo Lappalainen, Harri Auvinen, Riikka Keskinen
Summary: The use of wood fiber-based sludges from the pulp and paper industry can help improve the productivity of coarse-textured soils by increasing their organic matter content. However, these amendments may also lead to competition between plants and microbes for nitrogen uptake.
Article
Engineering, Environmental
Sanam Islam Khan, Asaf Zarin, Safia Ahmed, Fariha Hasan, Ali Osman Belduz, Sabriye Canakci, Samiullah Khan, Malik Badshah, Muhammad Farman, Aamer Ali Shah
Summary: The newly isolated Bacillus altitudinis SL7 showed efficient degradation of lignin, with optimal conditions at 40 degrees Celsius and pH 8.0. The degradation was confirmed through reductions in color and lignin contents, as well as the emergence of new low molecular weight compounds. The study suggests the potential application of B. altitudinis SL7 in biological treatment of lignin-containing effluents.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Environmental
Himadri Rajput, Rahil Changotra, Vikas Kumar Sangal, Amit Dhir
Summary: A simple anodization technique was used to synthesize Au doped TiO2 nanotubes electrodes for photoelectrocatalytic degradation of 4-CG. The optimized conditions showed 84% degradation efficiency in 6 hours. The PEC process was more effective compared to PC and EC processes. Additionally, the feasibility of using synthesized Au/TiO2NTs electrodes for large volume wastewater treatment was investigated, showing significant reduction in COD and TOC values. The cost of electrical energy consumption for both batch and recirculation mode treatments was also calculated.
CHEMICAL ENGINEERING JOURNAL
(2021)
