Marine outfall alternative to solve the color problems of pulp and paper industry effluents

1995 ◽  
Vol 32 (2) ◽  
pp. 241-248
Author(s):  
I. Öztürk ◽  
V. Eroglu ◽  
H. Z. Sarikaya ◽  
N. Sakiroglu ◽  
H. Selçuk
Keyword(s):  
Marine Environment ◽  
Paper Industry ◽  
Treatment Plant ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Full Scale ◽  
Pulp And Paper Mill ◽  
Test Species ◽  
Marine Outfall ◽  
Secondary Stage

In this paper, elimination of color from the effluents of the secondary stage biological treatment plant of an integrated pulp and paper mill located at a tourism resort was investigated by using a marine outfall system. The investigated mill has a full-scale aerated lagoon system treating effluents from a chemical pre-treatment plant. The colored effluents from the treatment plant have been discharged to a river ending in the Mediterranean and this has resulted in deterioration of the natural appearance of the coastal waters used for recreational purposes. In this study, a marine outfall system with a diameter of 1200 mm and a multiport diffuser of 290 m were planned to eliminate the color problem from the lagoon effluents. The required initial dilution to reduce the color to unnoticeable levels in the marine environment was determined 70 by laboratory-scale dilution experiments. In addition to these investigations, long-term full scale treatment results of the related industry are presented. Oceanographic studies and water quality measurements were performed to evaluate the effects of effluents from the industry on the marine environment. Bioassay tests were also conducted to assess the toxic impacts of the secondary treatment effluents on the macro fauna using Lapistes retucularis as a test species. Considering these findings, a marine outfall system was designed. The designed marine outfall system is currently under construction.

scholarly journals Radiotracer investigation of a pulp and paper mill effluent treatment plant

Nukleonika ◽  
2017 ◽  
Vol 62 (4) ◽  
pp. 289-294 ◽  
Author(s):  
Metali Sarkar ◽  
Vikas K. Sangal ◽  
Haripada Bhunia ◽  
Pramod K. Bajpai ◽  
Harish J. Pant ◽  
...  
Keyword(s):  
Paper Industry ◽  
Treatment Plant ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Effluent Treatment ◽  
Aeration Tank ◽  
Pulp And Paper Mill ◽  
Dead Zones ◽  
Effluent Treatment Plant ◽  
Secondary Clarifier

Abstract The pulp and paper industry is highly dependent on water for most of its processes, producing a significant amount of wastewater that should be treated to comply with environmental standards before its discharge into surface-water reservoirs. The wastewater generated primarily consists of substantial amounts of organic, inorganic, toxic and pathogenic compounds in addition to nutrients, which are treated in an effluent treatment plant that often combines primary, secondary, tertiary and advanced treatments. However, the treatment methods vary from industry to industry according to the process utilized. The effective performance of effluent treatment plants is crucial from both environmental and economic points of view. Radiotracer techniques can be effectively used to optimize performance and detect anomalies like dead zones, bypassing, channelling, etc. in wastewater treatment plants. Experiments on the distribution of residence time were performed on the aeration tank and secondary clarifier of a full-scale pulp and paper mill to study the flow behaviour as well as locate system anomalies and hence evaluate the performance of the treatment plants using the radiotracer I-131. The convolution method was applied to model the system with an imperfect impulse radiotracer input. The aeration tank was working efficiently in the absence of any dead zones or bypassing. Various hydrodynamic models available in the literature were applied on the aeration tank and secondary clarifier to obtain the hydraulic representation of the systems.

scholarly journals EFFECTS OF GENOME INSTABILITY IN LYMPHOCYTES AND BUCCAL EPITHELIOCYTES OF CHILDREN FROM THE CITY WITH BIG PULP AND PAPER INDUSTRY

2019 ◽  
Vol 98 (12) ◽  
pp. 1392-1401
Author(s):  
V. V. Yurchenko ◽  
Faina I. Ingel ◽  
N. A. Urtseva ◽  
E. K. Krivtsova ◽  
L. V. Akhaltseva
Keyword(s):  
Genomic Instability ◽  
Genome Instability ◽  
Micronucleus Test ◽  
Paper Industry ◽  
Paper Mill ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Pulp And Paper Mill ◽  
Buccal Epithelial Cells ◽  
The City

Introduction. Analysis of literature has shown genotoxicants (mutagens and carcinogens) to be present in the atmospheric emissions of pulp and paper industry (PPI). Moreover, among PPI workers from different countries, there was identified an additional risk of cancer, which suggests its high probability among residents of the cities where the PPI is located. The recognized index of genotoxic effects is an increased level of genome instability, which is determined, in particular, in the micronucleus test. The scope of the study - the comparative analysis of the effects of genomic instability in the two tissues - blood lymphocytes cultured with Cytochalasin B, and buccal epithelial cells in the second grade school children (8-9 years old, boys and girls), whose schools were located at different distances from the pulp and paper mill. Material and methods. The study was carried out in the city of Koryazhma, the Arkhangelsk Region (42000 citizens), where the pulp and paper plant as the city-forming industry was located. For the analysis, we subdivided the territories on which the schools were located, into 3 groups according to their distance from the pulp and paper mill. The effects of genomic instability were determined by cytome analysis in the micronucleus test. Results. Cytome analysis of cultivated lymphocytes demonstrated that levels of genome instability indices (including cell frequencies with micronuclei and nucleoplasm bridges, apoptosis, as well as changes in the spectrum of cell populations) to decrease along with the rising the distance between the pulp and paper mill and schools where the children go. In buccal epithelial cells, the manifestations of genomic instability effects were less systematic, which did not allow making a definitive conclusion. At the same time, in both tests, gender differences in the results of cytome analysis were revealed (for example, the alteration of frequency of lymphocytes with genetic damage dependence on the distance between schools and the PPI was more pronounced among boys). Conclusion. According to the results of this study and taking into consideration the data of literature, we hypothesized that the discovering of gender dimorphism in the effects of genome instability may indicate the presence of toxic and/or genotoxic compounds in an environment.

scholarly journals The formation of a stream of wastewater entering the treatment plant pulp and paper mill

2020 ◽  
Author(s):  
V.A. Rudakova ◽  
E.M. Mashinistova ◽  
V.A. Rakova ◽  
I.V. Rudakov
Keyword(s):  
Treatment Plant ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Pulp And Paper Mill

Sludge Utilization and Reduction Experiences in the Pulp and Paper Industry

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2105-2108 ◽  
Author(s):  
I. Öztürk ◽  
V. Eroglu ◽  
A. Bastürk
Keyword(s):  
Energy Requirement ◽  
Paper Industry ◽  
Paper Mill ◽  
Pilot Scale ◽  
Pulp And Paper ◽  
Upflow Anaerobic Sludge Blanket ◽  
Anaerobic Sludge ◽  
Pulp And Paper Mill ◽  
Biological Sludge ◽  
Study Results

This paper presents pilot-scale experiences on utilization of primary sludges from an integrated pulp and paper mill in the manufacturing of hardboard. The results have shown that the primary sludge added in 1/4 ratio yields the best result considering quality and operating aspects for the hardboard production. Lab-scale anaerobic treatability studies were carried out by an upflow anaerobic sludge blanket reactor (UASBR) with a volume of 10.351 using settled effluents from the related industry as the feed. Anaerobic treatability study results have shown that such an application prior to existing activated sludge system may provide 70 percent reduction in energy requirement for aeration and about 65 percent net reduction in excess biological sludge production.

Water Quality of the River Sava at the Inflow of a Pulp and Paper Mill Effluent

1990 ◽  
Vol 22 (5) ◽  
pp. 189-194 ◽  
Author(s):  
V. V. Cibulić
Keyword(s):  
Treatment Plant ◽  
Oxygen Demand ◽  
Paper Mill ◽  
Negative Influence ◽  
Pulp And Paper ◽  
Water Levels ◽  
Toxic Substances ◽  
Pulp And Paper Mill ◽  
Paper Mill Effluent ◽  
High Concentrations

The results of investigations into the effects of wastewaters from pulp and paper production on the River Sava are presented in this paper. Two situations were studied, i.e., when the treatment plant was in operation and when it was not working. The results of the investigations indicated that the wastewaters had significant effects on the Sava. Chemical oxygen demand (COD) and biochemical oxygen demand (BOD) were increased and some toxic substances were present at high concentrations, e.g., phenols, oils and grease, dyestuff, etc. The negative influence of the wastewaters was greater during the summer, at low water levels in the Sava. The Sava is a tributary of the River Danube, into which the pollution from this river finally flows. Regardless of the water flow rates, toxic substances are constantly accumulating, and, as a result, even such large systems as the Danube and the Sava are becoming more and more polluted.

Clarifier Performance in Activated Sludge Process Treating Pulp and Paper Mill Effluents

1994 ◽  
Vol 29 (5-6) ◽  
pp. 313-328 ◽  
Author(s):  
Sakari Halttunen
Keyword(s):  
Activated Sludge ◽  
Suspended Solids ◽  
Paper Industry ◽  
Paper Mill ◽  
Field Studies ◽  
Pulp And Paper ◽  
Pulp And Paper Mill ◽  
Paper Mill Effluents ◽  
Sludge Settling ◽  
Activated Sludge Processes

High suspended solids concentrations are typical for pulp and paper industry treated effluents. A new clarifier model was developed to find the reasons for this problem. The model clarifier is divided into four different zones: inlet, settling, thickening and separation. In the inlet zone sludge is transported by water flow and neither thickening nor settling will happen. When water velocity decreases the main part of the sludge will settle until it reaches the thickening zone. Thickening will continue until the sludge is pumped away from the clarifier. Concentration increase depends on sludge concentration, time and specific thickening coefficient. The minor part, which is specific to the sludge, enters the separation zone and will either settle in the thickening zone or stay in the effluent. In intensive field studies on 12 different activated sludge processes sludge volume in the clarifier, effluent suspended solids concentrations and sludge settling qualities were examined. Modelled sludge blanket volumes were verified with blanket measurements. Modelled effluent suspended solids were also verified by concentration measurements. Sludge thickening characteristics can be estimated by DSVI. From the data collected two empirical relationships were noticed between sludge settling properties and process operation. Solids concentration in clarified water depends on settling number, which is the mean number of sludge settling during its residence time in the process (sludge age). Sludge settling properties seem to depend on collision load, which is defined as COD-load divided by return sludge biomass flow.

Impact of Resin and Fatty Acids on Full-Scale Anaerobic Treatment of Pulp and Paper Mill Effluents

2016 ◽  
Vol 33 (6) ◽  
pp. 394-403 ◽  
Author(s):  
Torsten Meyer ◽  
Minqing Ivy Yang ◽  
Honghi N. Tran ◽  
D. Grant Allen ◽  
Elizabeth A. Edwards
Keyword(s):  
Fatty Acids ◽  
Paper Mill ◽  
Anaerobic Treatment ◽  
Pulp And Paper ◽  
Full Scale ◽  
Pulp And Paper Mill ◽  
Paper Mill Effluents

The Eutrophication of Pulp and Paper Wastewater Recipients

1991 ◽  
Vol 24 (3-4) ◽  
pp. 411-415 ◽  
Author(s):  
J. Wartiovaara ◽  
P. Heinonen
Keyword(s):  
Biological Treatment ◽  
Nutrient Loading ◽  
Paper Industry ◽  
Paper Mill ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Pulp And Paper Mill ◽  
Paper Wastewater ◽  
The Cost

During recent years the BOD-loading of pulp and paper mill wastewaters has decreased dramatically, due to more effective circulation of water in the processes, and the new activated sludge biological treatment plants. This traditional threat to the environment has been forgotten by the scientists who nowadays are more interested in the role of chlorine compounds discharged from bleaching processes. However, eutrophication due to nutrient loading is still present in many recipients of pulp and paper industry. The BOD-reduction has often been carried out on the cost of adding nutrients, pnosphorus and nitrogen to the purification processes. The biological treatment has also decreased the inhibitive effect of wastewater on the biological production of the recipient water body. Therefore, the eutrophication arises immediatly. The authors worry about the research of nutrients; loadings, development trends and eutrophication effects.

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