Residual pollutants in treated pulp paper mill wastewater and their phytotoxicity and cytotoxicity in Allium cepa

2021 ◽  
Author(s):  
Pooja Sharma ◽  
Diane Purchase ◽  
Ram Chandra
Keyword(s):  
Allium Cepa ◽  
Paper Mill ◽  
Pulp Paper ◽  
Paper Mill Wastewater

scholarly journals Anaerobic Treatment for Pulp & Paper Mill Wastewater Results of "Aqua Renaissance '90".

1994 ◽  
Vol 48 (1) ◽  
pp. 161-168 ◽  
Author(s):  
Kazuo Okamura ◽  
Tsutomu Ogoshi ◽  
Tetsuo Fujioka ◽  
Gennosuke Inoue
Keyword(s):  
Paper Mill ◽  
Anaerobic Treatment ◽  
Pulp Paper ◽  
Paper Mill Wastewater

scholarly journals Effects of Different Agro-Based Materials on Composting of Pulp/Paper-Mill Sludge

2014 ◽  
Vol 40 (1) ◽  
pp. 33-40
Author(s):  
Nurdan Aycan ◽  
Nurdan Gamze Turan
Keyword(s):  
Rice Husk ◽  
Paper Mill ◽  
Bulking Agents ◽  
Paper Mill Sludge ◽  
Total N ◽  
Compost Maturity ◽  
Pulp Paper ◽  
Composting Systems ◽  
Maturity Parameters

Abstract The effects of different volumetric ratios of bulking agents to pulp/paper-mill sludge on composting were studied. Rice husk and corncob were used as bulking agents. Volumetric ratios of bulking agents to pulp/paper-mill sludge were used as 10:100 and 25:100. To monitor the evolution of the composting systems, routine parameters such as temperature, moisture, pH, total N, NH4 +-N, NO3 --N, total C, and C/N ratio were analyzed. The results indicated that the agro-based materials significantly affected compost maturity parameters. Moreover, the quality of the product obtained in the composting process treated with the agro-based materials achieved satisfactory stabilization and sanitation for application to land.

Monitoring of a paper mill wastewater treatment plant using UV/VIS spectroscopy

2004 ◽  
Vol 49 (1) ◽  
pp. 9-14 ◽  
Author(s):  
G. Langergraber ◽  
N. Fleischmann ◽  
F. Hofstaedter ◽  
A. Weingartner
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Paper Mill ◽  
Biological Degradation ◽  
Vis Spectroscopy ◽  
Reference Checking ◽  
Paper Mill Wastewater ◽  
Single Instrument

A submersible UV/VIS spectrometer was used to monitor a paper mill wastewater treatment plant. It utilises the UV/VIS range (200-750 nm) for simultaneous measurement of COD, filtered COD, TSS and nitrate with just a single instrument. The instrument measures in-situ, directly in the process. Paper mill wastewater shows typical and reproducible spectra at various process measuring points. There is a relative maximum at 280 mm due to the absorbance by dissolved organic substances, mainly ligninic acids. Comparison of absorbance spectra distinctly shows the decrease of this peak, indicating biological degradation throughout the treatment process. Summarising, one can say that paper mill wastewater cannot be monitored by a simple UV probe measuring only the absorbance at a single wavelength. The required information can only be gained from the whole spectra. Regarding plant control it is suggested that only the overall spectral information is used. Calibrations to conventional parameters are now merely carried out for purposes of reference-checking.

Sign in / Sign up

Export Citation Format

Share Document