Assessment of Water Quality and State of Bottom Sediments of the Northern Part of the Rybinsk Reservoir by Emissions of the CherMK PAO "Severstal"

2019 ◽  
Vol 23 (10) ◽  
pp. 39-43 ◽  
Author(s):  
K.Yu. Mikhaylichenko ◽  
A.I. Kurbatova ◽  
A.Yu. Dorontsova ◽  
A.A. Paukova
Keyword(s):  
Water Quality ◽  
Adverse Effect ◽  
Metallurgical Plant ◽  
Bottom Sediments ◽  
Rybinsk Reservoir ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Pulp And Paper Mill ◽  
The Rybinsk Reservoir

The quality of the water and bottom sediments of the Rybinsk Reservoir, on the adjacent territory of which the Cherepovetskiy Metallurgical Plant PJSC “Severstal” is located, which has an adverse effect on the state of the water body is investigated. The pollution of water and bottom sediments by the metallurgical plant in the northern part of the Rybinsk reservoir was assessed in connection with the planned construction of a pulp and paper mill (PPM) at the site of the study.

A New Life for the St. Croix River

1988 ◽  
Vol 23 (4) ◽  
pp. 568-577
Author(s):  
Harold S. Bailey
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Discharge Rate ◽  
Paper Mill ◽  
Regulated River ◽  
Secondary Treatment ◽  
Pulp And Paper Mill ◽  
Oxygen Regime ◽  
Oxygen Concentrations

Abstract The water quality of the upper 110 kilometres of the St. Croix River is considered to be pristine. A major industrial discharge renders the lower 14 kilometres of the river a water quality limited segment. Prior to 1970 the Georgia-Pacific Pulp and Paper Mill at Woodland, Maine, discharged untreated effluent directly into the river causing dissolved oxygen concentrations to drop well below 5 mg/L, the objective chosen in the interest of restoring endemic fish populations. Since 1972, the Mill has installed primary and secondary treatment, regulated river discharge rate and effluent composition which has greatly improved the summer dissolved oxygen regime. By 1980, dissolved oxygen concentrations were generally above 5.0 mg/L and restocking the river with Atlantic Salmon (Salmo salar) was initiated.

Density, Distribution, and Movement of Nipigon Bay Fishes in Relation to a Pulp and Paper Mill Effluent

1977 ◽  
Vol 34 (6) ◽  
pp. 879-885 ◽  
Author(s):  
J. R. M. Kelso
Keyword(s):  
Water Quality ◽  
Yellow Perch ◽  
Paper Mill ◽  
Pelagic Fish ◽  
Pulp And Paper ◽  
Avoidance Reaction ◽  
Pulp And Paper Mill ◽  
High Discharge ◽  
Paper Mill Effluent ◽  
Species Dominance

Density of pelagic fish in accessible portions of Nipigon Bay was lower offshore, less than 100 fish/10,000 m3, and greater nearshore, less than 1800 fish/10,000 m3. Conditions at Red Rock caused intense aggregation there and caused species dominance to shift to sucker at the mill discharge from yellow perch elsewhere. Plume shape and direction did not alter the localized pattern of distribution. Two typical responses to plume concentrations were found using suckers fitted with ultrasonic transmitters. Fish released in high discharge concentrations (>15% dilution by volume) became disoriented for as much as several hours, then appeared to search for "background" conditions. Fish released in low discharge concentrations (<15%) immediately initiated an avoidance reaction. Although individuals tended to avoid areas of altered water quality, the community aggregated at Red Rock in response to, perhaps, increased production of benthic macroinvertebrates. However, telemetry indicated that residence time was short in the area of altered water quality.

Biofiltration Pilot Test at the Daishowa Pulp and Paper Mill Using the Biocarbone Process

1993 ◽  
Vol 28 (3) ◽  
pp. 621-634
Author(s):  
François A. Séguin ◽  
Bruno Tremblay ◽  
Ronald Zaloum ◽  
Pierre Lavallée ◽  
Serge Lapointe
Keyword(s):  
High Performance ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Environmental Standards ◽  
Pulp And Paper Mill ◽  
Monthly Basis ◽  
Treatment Processes ◽  
Cost Efficient ◽  
Activated Sludge Processes

Abstract As a result of increasing industrial activity and stricter application of environmental standards, pressure is being brought on Industries to improve the quality of their effluents. To achieve these goals, cost-efficient and high-performance wastewater treatment processes are needed. Recently, tests were completed on the treatment of ground wood, TMP and de-inking process effluents at the Daishowa, Quebec, pulp and paper mill. The biological treatment used was a fixed-film process known as the “Biocarbone” process. These tests demonstrated conclusively the high effectiveness of the Biocarbone process at COD loads of up to 10 kg/m3.day. This represents a major savings of space when compared to conventional waste activated sludge processes with COD loads of 2-3 kg/m3.day. The object of the test was to verify BOD5 levels, TSS removal and toxicity levels with respect to existing environmental standards. At all times and for all conditions tested, the Biocarbone process met the accepted standards of 5 kg/t of BOD5, 8 kg/t of TSS, and total removal of toxicity on a monthly basis

Reduction of pulp and paper mill pollution by ozone treatment

1997 ◽  
Vol 35 (2-3) ◽  
pp. 261-268 ◽  
Author(s):  
J.-C. Hostachy ◽  
G. Lenon ◽  
J.-L. Pisicchio ◽  
C. Coste ◽  
C. Legay
Keyword(s):  
Paper Industry ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Ozone Treatment ◽  
Pulp Mills ◽  
Pulp And Paper Mill ◽  
Softwood Pulp ◽  
Before And After ◽  
Receiving Waters

The pulp and paper industry is facing more stringent regulations on the quality of effluent discharges to receiving waters, especially for bleached pulp mills. In most cases, these regulations concern mainly AOX concentrations, biotoxicity and COD level in the final discharges. An effective way to improve pollution balance would be to use ozone as an external treatment to meet environmental regulations. The first part of this work has consisted in the identification of the polluting steps in pulp and paper mill processes in terms of toxic effects. After identification, effluents streams that contribute the most to the global pollution of the mill were selected for ozone treatment. For bleaching effluents, the goal was to eliminate acute toxicity and chlorophenolics to increase biodegradability. Depending on the nature of the effluent, complete detoxification and an increase of biodegradability can be obtained with low ozone doses (0.5-1 kg/ADt of pulp). Ozone has also been applied on the final effluent discharges before and after biological treatment. In hardwood and softwood pulp and paper mill final discharges, the residual COD can be eliminated with a catalyzed ozone treatment. This treatment may allow a water quality sufficient for reutilisation which could lower water consumption of the pulp processes.

Impact of a Kraft Pulp and Paper Mill Effluent on Phytoplankton and Macroinvertebrates in River Nzoia, Kenya

2010 ◽  
Vol 45 (2) ◽  
pp. 235-250 ◽  
Author(s):  
Salome Ojunga ◽  
Frank O. Masese ◽  
Julius O. Manyala ◽  
Lazare Etiegni ◽  
Augustino O. Onkware ◽  
...  
Keyword(s):  
Water Quality ◽  
Kraft Pulp ◽  
Paper Mill ◽  
Ammonia Nitrogen ◽  
Pulp And Paper ◽  
Phosphorus Concentration ◽  
Pulp And Paper Mill ◽  
Total Phosphorus Concentration ◽  
Paper Mill Effluent ◽  
The Impact

Abstract Phytoplankton and macroinvertebrate assemblages were used to assess the impact of a kraft pulp and paper mill effluent in Kenya, on River Nzoia downstream of the discharge point in relation to changes in water quality during May to June and November 2008 (rainy and dry seasons, respectively). Total phosphorus concentration increased from 0.027 mg.L-1 upstream to 0.04 mg.L-1 downstream. Ammonia nitrogen (NH3-N) concentration was 0.51 mg.L-1 upstream and 0.86 mg.L- 1 downstream. Nitrate concentration stood at 1.18 mg.L-1 upstream compared with the 2.23 mg.L-1 downstream. The pH changed from 4.5 to 5.0 upstream to 5.5 to 6.0 downstream, while DO increased from 6.57 to 7.03 mg.L-1 downstream. The BOD5 (biochemical oxygen demand after five days) values remained almost unchanged from 4.63 mg.L-1 upstream to 4.67 mg.L-1 downstream. Taxon composition of phytoplankton and macroinvertebrates correlated with adverse environmental gradients resulting from the mill's effluent discharge. Overall, there was a shift in composition and abundance of both phytoplankton and macroinvertebrates, with the downstream site recording high numbers of tolerant taxa (i.e., Microcystis sp. and Chironomus sp.). It was recommended that water quality monitoring with effluents of this nature be done using a combination of chemical analysis and biological indicators such as phytoplankton and macroinvertebrates.

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