Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 14 of 14 for “"Pulp and paper mill"”.
-
Promoting pulp and paper mill material circularity: functionalised organic-inorganic cellulosic mulch films
Water scarcity, fertiliser run-off, and weeds competing for resources reduce forestry and agricultural productivity. Conventionally, fossil-fuel-based synthetic mulch films have been used to mitigate soil water loss, as a matrix for the slow-release of fertiliser, and for UV-vis light blocking to …
-
Biochemical Studies on Enzymatic Treatment of Pulp and Paper Mill Biosludge and Polymeric Lignin
… is just becoming popular for the treatment of pulp and paper mill effluents. However, hydrolysis of complex organic matter represents the rate-limiting step of anaerobic digestion. Hence, this project is focused on improving the anaerobic digestibility of pulp and paper mill biosludge using …
-
Identification and analysis of extractable organic compounds present in pulp and paper mill effluent
… present in the effluent streams of a New Zealand pulp and paper mill have been investigated. Nearly 200 compounds were detected, of which 170 were identified. Most of the compounds are released during mill operations. Some of the compounds detected in treatment system samples arise from the …
-
Characterisation and fate of bleached kraft mill effluents from a New Zealand pulp and paper mill
The wastewater discharges from the Kinleith mill, a New Zealand integrated bleached kraft pulp and paper mill, were characterised and their treatability assessed. The chlorination stage bleaching effluents from the mill’s second bleach plant [(C30D70)EoDED sequence] contained a group of novel …
-
An assessment of endocrine disrupting potential of a New Zealand pulp and paper mill effluent using rainbow trout Oncorhynchus mykiss and mosquitofish Gambusia affinis
… the effects of a modern mixed thermo-mechanical pulp/bleached kraft (TMP/BK) mill effluent on potential reproductive-endocrine impacts on two fish species, rainbow trout and mosquitofish using a combined approach of laboratory and on-site mesocosm exposures. Rainbow trout Oncorhynchus mykiss were …
-
Improving maintenance operation through transformational outsourcing
… option for manufacturers to achieve tactical and/or strategic objectives. Though simple in concept, maintenance outsourcing is difficult in execution, especially in a cost-sensitive environment. This project examines the Full Service business under ABB Ltd to understand the key factors that …
-
Application of Ozone in Dissolved Air Flotation (DAF) for Enhanced Removal of TOC and Suspended Solids in Pulp and Paper Wastewaters
Pulp and paper mills are one of the top consumers of water related to industrial manufacturing, which ultimately leads to a large volume of heavily contaminated wastewater. This discharged effluent can have a harmful effect on the receiving aquatic environment and cause further ramifications …
-
A comparison of antichlors used in scrubbing chlorine and chlorine dioxide from bleach plant vent gases
… of several antichlors in regards to their Cl₂ and ClO₂ gaseous "scrubbing" capacity. Both a pilot study as well as full scale trials were completed. Work was done on a bleach plant-packed tower scrubber system at a kraft pulp and paper mill. The pilot study was performed at pH's of 10.0 to 12.0 …
-
Promoting material circularity in pulp and paper mills: organic-inorganic cellulosic composites for slow-release of nutrients
The pulp and paper industry generates large quantities of waste, while the forestry sector experiences economic and environmental challenges with commercial fertilisers. Slow/controlled-release fertilisers (SCRFs) offer an opportunity to repurpose waste-stream materials and improve nutrient …
-
The anti-estrogenic and liver metabolic effects of DHAA in rainbow trout (oncorhynchus mykiss)
… acid (DHAA), a resin acid present in pulp and paper mills, may have anti-estrogenic effects in fish. A chronic-exposure toxicity experiment using immature rainbow trout (Oncorhynchus mykiss) was conducted in order to assess the endocrine disrupting and liver metabolic effects of the …
-
Automated retrofit of heat exchanger networks
… using fossil fuels, contributing to New Zealand’s overall greenhouse gas emissions. While New Zealand’s renewable energy sources present potential alternatives to fossil fuels, reducing the process heat demand of industrial processing plants is another critical step for emissions reduction, …
-
Open-Source tools for practical heat integration and utility system evaluation
… most effective strategies for reducing heat demand is optimising the design of heat exchanger networks (HENs). While automated synthesis methods like mathematical programming have long promised optimal designs, their industrial adoption remains limited. Key barriers include expensive software …
-
Fate and effects of pulp mill effluent solids in the soil environment
The pulp and paper industry in New Zealand annually produces over one hundred thousand dry tonnes of solid waste due to the treatment of pulp and paper mill effluents, the majority of which is currently landfilled. The New Zealand Waste Management Strategy (2002) has set a target for the diversion …