Environmental Issues of the Pulp and Paper Industry

Environmental problems: The influence of background on water pulp and paper are heavy industries involving the use of large amounts of water. It also results in a large amount of effluent containing suspended solids in the untreated effluent. Table () shows the amount of untreated effluent and the corresponding suspended solids (kg / t) and BOD (kg / t). Suspended solids consist predominantly of untreated wood components, additives or coatings. An increase in suspended solids in the aqueous phase results in an increase in BOD and hydrogen sulfide levels.

After working for 10 years in the pulp industry, I know a lot about pulp, but the whole story on how wood is packaged after being converted to cardboard is not very clear. However, as a consumer, I pay more attention to the environmental benefits of recyclable packaging and renewable biomaterials. As an engineer, I like difficult figures, but most consumers may not like it. Therefore, the information can be, for example, a visual story. This is easy to obtain and you should try to find the answer. The story is also inherently dynamic and may contain information such as raw material basis, process value, environmental value, worker review and so on.

In 2005, the US Department of Energy published a report titled "Energy and Environmental Profiles of the Pulp and Paper Industry". It discussed waste as well as pollution caused by resources and processes produced by paper manufacturing. It is the quantity industry. In contrast, according to David Taylor, the petroleum industry is efficient enough to produce a small amount of waste. According to the Bag Life Cycle Report, provided by the UK Environment Agency in 2006, "Paper, LDPE, nonwoven PP and cotton bags are at least 3, 4, 11 and 131, respectively, to ensure global warming The report should compare traditional thin plastic bags (high density polyethylene or HDPE), nonwoven polypropylene (PP), cotton, low density polypropylene (LDPE), and paper bags.