Diatoms in monitoring of the Vychegda River under the influence of pulp-paper mill (Russia)

2019 ◽  
pp. 101-104
Author(s):  
Angelina S. Stenina ◽  
Elena N. Patova
Keyword(s):  
Water Quality ◽  
Species Richness ◽  
Structural Diversity ◽  
Paper Mill ◽  
Wastewater Discharge ◽  
Pulp Paper ◽  
Indicator Group ◽  
River Communities

The influence of the pulp-paper mill on the development of phytoplankton river communities in the wastewater discharge zones was studied. For the analysis, an indicator group of diatoms was used with data on species richness and structural diversity. The basis of the dominant complexes of the studied sections of the river were mainly species of the genus Aulacoseira. Saprobity indices vary by stations within 1.77–2.06, which corresponds to III class of water quality.

scholarly journals Species composition of aquatic invertebrates of the Viliya River

2018 ◽  
Vol 63 (4) ◽  
pp. 401-408 ◽  
Author(s):  
M. D. Moroz ◽  
V. M. Baichorov ◽  
Yu. G. Hihiniak
Keyword(s):  
Water Quality ◽  
Species Richness ◽  
Species Composition ◽  
Aquatic Invertebrates ◽  
High Water ◽  
Wastewater Discharge ◽  
Aquatic Animals ◽  
Number Of Species ◽  
The Town

The results of studies of macrozoobenthos and pleustonic aquatic invertebrates complexes  of the Viliya River have been considered in the article. 92 species and forms related to 3 types of aquatic animals which are Mollusca – 15 species and forms; Annelida – 2 and Arthropoda –75 have been detected. The analysis of the species composition has shown in all studied sites that the species richness was within the range of 29–30 species. At the place of wastewater discharge from the town of Vileika, a species richness decrease and the number of Diptera and Oligochaeta increase has been observed. The relatively high number of species with rheophilic and oxyphilic properties such as representatives of the Plecoptera, Ephemeroptera, and Trichoptera orders groups indicates a fairly high water quality in the investigated sites of the Viliya River. Rare and protected for Belarus and Europe.species have been found.

Application of a Pilot-Scale Pulsed Electrocoagulation system to OCC-Based Paper Mill Effluent

TAPPI Journal ◽  
2009 ◽  
Vol 8 (3) ◽  
pp. 14-20 ◽  
Author(s):  
YUAN-SHING PERNG ◽  
EUGENE I-CHEN WANG ◽  
SHIH-TSUNG YU ◽  
AN-YI CHANG
Keyword(s):  
Water Quality ◽  
Quality Indicators ◽  
Paper Mill ◽  
Pilot Scale ◽  
Operating Conditions ◽  
Optimal Dosage ◽  
Water Quality Indicators ◽  
Paper Mill Effluent ◽  
Treated Effluent ◽  
True Color

Trends toward closure of white water recirculation loops in papermaking often lead to a need for system modifications. We conducted a pilot-scale study using pulsed electrocoagulation technology to treat the effluent of an old corrugated containerboard (OCC)-based paper mill in order to evaluate its treatment performance. The operating variables were a current density of 0–240 A/m2, a hydraulic retention time (HRT) of 8–16 min, and a coagulant (anionic polyacrylamide) dosage of 0–22 mg/L. Water quality indicators investigated were electrical con-ductivity, suspended solids (SS), chemical oxygen demand (COD), and true color. The results were encouraging. Under the operating conditions without coagulant addition, the highest removals for conductivity, SS, COD, and true color were 39.8%, 85.7%, 70.5%, and 97.1%, respectively (with an HRT of 16 min). The use of a coagulant enhanced the removal of both conductivity and COD. With an optimal dosage of 20 mg/L and a shortened HRT of 10 min, the highest removal achieved for the four water quality indicators were 37.7%, 88.7%, 74.2%, and 91.7%, respectively. The water qualities thus attained should be adequate to allow reuse of a substantial portion of the treated effluent as process water makeup in papermaking.

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.

Features of Water Function Zoning of the Surface Water in Sichuan Province

2015 ◽  
Vol 730 ◽  
pp. 221-229
Author(s):  
Rui Kun Cai ◽  
Fu Quan Ni ◽  
Yu Deng
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Water Resources ◽  
Agricultural Production ◽  
Production Management ◽  
Sichuan Province ◽  
Wastewater Discharge ◽  
Agricultural Wastewater ◽  
Key Points ◽  
Water Quality Deterioration

In this study, based on the water function zoning and the related analyses on the current situations and tendency of the pollutions on water environments in Sichuan province, concluded that the primary cause responsible for the deterioration of water resources is the discharge of agriculture wastewater, and the strengthening of agricultural production management as well as the reduction of the agricultural wastewater discharge are the key points to alleviate the water-quality deterioration.

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.

Does species richness affect the growth and water quality of submerged macrophyte assemblages?

2019 ◽  
Vol 153 ◽  
pp. 51-57 ◽  
Author(s):  
Qian Zhang ◽  
Yun-Peng Liu ◽  
Fang-Li Luo ◽  
Bi-Cheng Dong ◽  
Fei-Hai Yu
Keyword(s):  
Water Quality ◽  
Species Richness ◽  
Submerged Macrophyte

scholarly journals Algae and Cyanobacteria Diversity and Bioindication of Long-Term Changes in the Hula Nature Reserve, Israel

Diversity ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 583
Author(s):  
Sophia Barinova ◽  
Alla Alster
Keyword(s):  
Water Quality ◽  
Species Richness ◽  
Nature Reserve ◽  
Eastern Mediterranean ◽  
Monitoring Program ◽  
Organic Pollution ◽  
Ecological Groups ◽  
International Importance ◽  
First Time ◽  
Lake Hula

Lake Hula, the core of one of the most extensive wetland complexes in the Eastern Mediterranean, was drained in 1951–1958. However, about 350 hectares of papyrus marshes were allocated in the southwestern part of the previous lake and became the Hula Nature Reserve status, the first of two wetlands in Israel included in the Ramsar List of Wetlands of International Importance. The list of algae and cyanobacteria species of Lake Hula was compiled by us for the first time based on data from publications of 1938–1958, as well as our research in the Hula Nature Reserve, obtained within the framework of the monitoring program for 2007–2013. The list includes 225 species and intraspecies of algae and cyanobacteria belonging to eight phyla. The dynamics of the species richness of algae and cyanobacteria flora for 1938–2013 are shown. Species-bioindicators of water quality have been identified, and the change in their composition by ecological groups for a period of about a hundred years has been shown. Based on the species richness of algae communities, water quality indices were calculated with particular attention to changes in trophic status during the study period. The algae flora of Lake Hula and Hula Nature Reserve was found to be similar, but bioindication has revealed an increase in salinity and organic pollution in recent years.

Environmental and Epidemiological Aspects of V. cholerae O1 Contamination of Water Bodies in the Republic of Kalmykia

2021 ◽  
pp. 79-86
Author(s):  
EA Moskvitina ◽  
EG Yanovich ◽  
ML Kurilenko ◽  
VD Kruglikov ◽  
AK Noskov
Keyword(s):  
Water Quality ◽  
Quality Indicators ◽  
Russian Federation ◽  
Water Bodies ◽  
Pcr Analysis ◽  
Wastewater Discharge ◽  
The Russian Federation ◽  
The Republic ◽  
The City ◽  
Chemical Water

Background: Within the framework of cholera surveillance in the Russian Federation, annual isolation of nontoxigenic V. cholerae O1 strains from water bodies is registered in the Republic of Kalmykia. This fact is the rationale for the present study and analysis of data on contamination of water bodies with V. cholerae O1 with account for some environmental and quality indicators of water bodies used for recreational purposes. Objective: To study contamination of water bodies with V. cholerae O1 as a component of cholera control surveillance in the Republic of Kalmykia. Materials and methods: We used notifications issued by Offices of the Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing (Rospotrebnadzor) in the constituent entities of the Russian Federation, passports for V. cholerae O1 strains, and information from “Cholera vibrios. Russia” database for 1991–2019. Results: In the 1970s, 1980s and 1990s, several outbreaks, sporadic and single imported cases of cholera were registered in the republic. The total of 446 strains of V. cholerae O1 El Tor were isolated during the analyzed period. The PCR analysis identified them as V. cholerae O1 ctxA–tcpA– and V. cholerae O1 ctxA– tcpA+. We observed an increasing trend in the number of isolated strains with the approximation coefficient of 0.374 against its general decrease in the country in 1991–2019. Strains were isolated annually, mainly from the Elista River, Zayachy Pond and other water bodies with poor microbiological and chemical water quality parameters. V. cholerae O1 ctxA– tcpA+ were isolated mainly at the wastewater discharge sites, which indicated their imported origin, along with V. cholerae O1 ctxA– tcpA– with InDel and PCR genotypes not previously found in this region. We consider the contamination of water bodies with V. cholerae O1 ctxA– tcpA– and V. cholerae O1 ctxA– tcpA+ as prerequisites for possible deterioration of the local epidemiological situation due to cholera importation from endemic areas. Conclusion: When analyzing the pollution of water bodies in the Republic of Kalmykia with V. cholerae O1, we established a long-term annual isolation of cholera vibrios from some water bodies in the city of Elista, including Elistinka river, Zayachy and Kolonsky ponds, notorious for poor microbiological and chemical water quality indicators. The contamination was mainly attributed to domestic wastewater discharge and poorly treated effluents of sewage treatment plants into the Elistinka river within the city boundaries, as well as watercourses from hollows. This proves the imported origin of the bacterium confirmed by isolation of V. cholerae O1 ctxA– tcpA– with InDel- and PCR-genotypes not previously found in this region.

Sign in / Sign up

Export Citation Format

Share Document