Sewers and the Quality of Canals and Ditches in Amsterdam

1993 ◽  
Vol 27 (5-6) ◽  
pp. 61-67 ◽  
Author(s):  
E. Jacobs ◽  
J. W. van Sluis
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Sediment Quality ◽  
Water System ◽  
Water Systems ◽  
Sewer System ◽  
Water And Sediment ◽  
Combined Sewer ◽  
Water And Sediment Quality

The surface water system of Amsterdam is very complicated. Of two characteristic types of water systems the influences on water and sediment quality are investigated. The importance of the sewer output to the total loads is different for both water systems. In a polder the load from the sewers is much more important than in the canal basin. Measures to reduce the emission from the sewers are much more effective in a polder. The effect of these measures on sediment quality is more than the effect on water quality. Some differences between a combined sewer system and a separate sewer system can be found in sediment quality.

scholarly journals Variations in selected water quality variables and metal concentrations in the sediment of the lower Olifants and Selati rivers, South Africa

Koedoe ◽  
1994 ◽  
Vol 37 (2) ◽  
Author(s):  
T. Seymore ◽  
H.H. Du Preez ◽  
J.H.J. Van Vuren ◽  
A. Deacon ◽  
G. Strydom
Keyword(s):  
Water Quality ◽  
Sediment Quality ◽  
Metal Concentrations ◽  
Water And Sediment ◽  
Water And Sediment Quality ◽  
Special Concern ◽  
Olifants River ◽  
Western Side ◽  
Physical And Chemical

A survey of the water and sediment quality of the lower Olifants River and lower Selati River was carried out. Metal concentrations (Cr, Cu, Fe, Mn, Ni, Pb, Sr and Zn) in the water and sediment, as well as the physical and chemical characteristics of the water were determined over a two-year period (April 1990 - February 1992). The water quality of the lower Selati River, which flows through the Phalaborwa area, was found to be influenced by the mining and industrial activities in the area. It was also the case with the lower Olifants River after the Selati-Olifants confluence, although the concentrations of most variables did decrease from the western side of the Kruger National Park to the eastern side due to dilution of the water by tributaries of the Olifants River. Variables of special concern were sodium, fluoride. chloride, sulphate, potassium, the total dissolved salts and the metal concentrations (except strontium). The water quality of the Selati River in the study area is a great cause of concern and a further degradation thereof cannot be afforded.

scholarly journals Assessment of the Water and Sediment Quality of Tropical Forest Streams in Upper Reaches of the Baleh River, Sarawak, Malaysia, Subjected to Logging Activities

2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
Teck-Yee Ling ◽  
Chen-Lin Soo ◽  
Jagath-Retchahan Sivalingam ◽  
Lee Nyanti ◽  
Siong-Fong Sim ◽  
...  
Keyword(s):  
Water Quality ◽  
Suspended Solids ◽  
Sediment Quality ◽  
Ammonia Nitrogen ◽  
Large Temperature ◽  
Water And Sediment ◽  
Water And Sediment Quality ◽  
Forest Streams ◽  
The Impact

The study of the impact of logging activities on water and sediment quality of Sarawak forest streams is still scarce despite Sarawak being the largest exporter of timber in Malaysia. This study was aimed at determining the water and sediment quality of forest streams in Sarawak and the potential impact of logging activities. In situ parameters were measured, and water and sediment samples were collected at six stations before rain. Additionally, water quality was investigated at three stations after rain. The results showed that canopy removal resulted in large temperature variation and sedimentation in the forest streams. Lower suspended solids were found at stations with inactive logging (<2 mg/L) compared to active logging (10–16 mg/L) activities. The highest concentration of total nitrogen and total phosphorus in water and sediment was 4.4 mg/L, 77.6 μg/L, 0.17%, and 0.01%, respectively. Besides, significantly negative correlation of sediment nitrogen and water total ammonia nitrogen indicated the loss of nitrogen from sediment to water. Water quality of the streams deteriorated after rain, in particular, suspended solids which increased from 8.3 mg/L to 104.1 mg/L. This study reveals that logging activities have an impact on the water quality of Sarawak forest streams particularly in rainfall events.

scholarly journals An Assessment of Water and Sediment Quality of River in India with Special Reference to Pesticide Contamination, a Case Study

2018 ◽  
Vol 7 (3.8) ◽  
pp. 97
Author(s):  
Divya A.H ◽  
P A. Soloman
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Bottom Sediment ◽  
Sediment Quality ◽  
Temporal Distribution ◽  
Water Quality Monitoring ◽  
Human Beings ◽  
Water And Sediment Quality

Drinking water quality has become a serious issue in many countries due to the scarcity of fresh water resources. Water quality monitoring is the first step for the management and conservation of aquatic system. The contamination of OrganoChlorine Pesticides (OCPs) is very harmful for the environment and human beings. The presence of OCPs in surface water and in the bottom sediment in the Chalakudy River was investigated to evaluate the pollution load and distribution level of OCP seasonally over a period of 3 years from January 2013 to December 2015. Surface water sample and bottom sediment were collected from nine different sites (upstream, midstream and downstream) and analyzed for their profile of important physicochemical parameters and for persistence of OCP. To know the present trends in the river clearly ,temporal  distribution  and spatial distribution of OCPs and other parameters are studied based on three season(winter, summer, and monsoon).Obtained trend in each  year  were compared  through sampling and analysis.   

scholarly journals Effect of Bio-Enzymatic Preparation on Water Quality in Ponds and on Quantity and Quality of Fishpond Sediments

2020 ◽  
Vol 68 (3) ◽  
pp. 551-557
Author(s):  
Barbora Müllerová ◽  
Marija Radojičić ◽  
Radovan Kopp ◽  
Jan Grmela ◽  
Michal Šorf ◽  
...  
Keyword(s):  
Water Quality ◽  
Sediment Quality ◽  
Climatic Conditions ◽  
Enzymatic Preparation ◽  
Growing Seasons ◽  
Water And Sediment ◽  
Sediment Loss ◽  
Water And Sediment Quality ◽  
The Individual

The aim of this study was to evaluate the ability of a bacterial-enzymatic preparation to affect water quality, particularly the composition and the amount of sediments in ponds. The PTP Plus preparation was applied during the year 2016. For evaluation of the possible effects of the preparation, the water and sediment was compared in the growing seasons 2016 and 2017. When monitoring the sediment loss, a difference ranging from 72 to 86 mm was measured. There was an increase in the level of conductivity, alongside with an increase in the amount of calcium and chlorides in the water. In the case of the sediment, there was an increase in the amount of organic substances in the aqueous leachate and a decrease in the amount of available and total calcium. Changes of other monitored parameters were not so clear. The significant changes in water and sediment quality in the individual years of monitoring were probably more influenced by climatic conditions and significant growth of macrophytes in 2017 than by the application of the product. The expected reduction of the share of organic matter in the sediments after the application of the product has not been confirmed.

scholarly journals Water and Sediment Quality Index Due To Gold Mining in The Krueng Kluet Hilir Watershed, Aceh Selatan Regency

2020 ◽  
Vol 9 (1) ◽  
pp. 29-39
Author(s):  
Ichwana Ramli ◽  
Syahrul . ◽  
Mutia Rizka Lestari
Keyword(s):  
Water Quality ◽  
Sediment Quality ◽  
Pollution Index ◽  
Quality Criteria ◽  
Polluted Water ◽  
Water Quality Criteria ◽  
Quality Guidelines ◽  
Water And Sediment ◽  
Water And Sediment Quality

Increasing population growth, economic and industrial development will lead to the utilization of natural resources effected on water pollution. One of those activities related to natural resource utilization is gold mining. Mining activities cannot be separated from the use of chemicals that are harmful to living things; for example, it is mercury. This study aims to determine levels of mercury (Hg) that accumulate in water and sediments. The tools used in this research are QGIS 2.18.27 software and Global Positioning System. The material used is water and sediment samples. Water and sediment samples were analyzed at the Industrial Standardization Research Institute Laboratory to obtain several potential parameters such as hydrogen (pH), mercury (Hg), Lead (Pb), Iron (Fe), and Copper (Cu). These potential parameters are further analyzed using the Pollution Index (PI) method and Sediment Quality Guidelines (SQGs). The results demonstrated that the water quality in downstream of Krueng Kluet sub-watershed in for 2019 using the Pollution Index (PI) method for the drinking water (Class I) with the value is 6.2036. It is classified as moderately polluted water quality criteria and for the agricultural water (Class IV) with the value is 6.0796, classified as moderately polluted water quality criteria. The quality of sediments in the downstream of Krueng Kluet sub-watershed using the sediment quality guidelines method with the value is 0.2343 is classified as an adverse effect for the biota of heavy metals on medium value. This shows that neither the water quality nor the sediment in the downstream of Krueng Kluet sub-watershed does not accord with the water and sediment quality standards. Pollution Index can assess the quality of water bodies and becomes a consideration in taking actions to improve water quality. At the same time, SQGs show chemical concentrations that have biological effects on aquatic biodata.

Effect of small-scale illegal mining on surface water and sediment quality in Ghana

2021 ◽  
pp. 1-26
Author(s):  
Humphrey Ferdinand Darko ◽  
Anthony Yaw Karikari ◽  
Anthony Appiah Duah ◽  
Bismark Awinbire Akurugu ◽  
Victor Mante ◽  
...  
Keyword(s):  
Surface Water ◽  
Sediment Quality ◽  
Small Scale ◽  
Illegal Mining ◽  
Water And Sediment ◽  
Water And Sediment Quality

scholarly journals POLLUTION EFFECTS ON THE ENVIRONMENT, MACROPHYTES AND FISHES IN THE SAPUCAIA STREAM, GUAiBA HYDROGRAPHIC BASIN, RS, BRAZIL

2005 ◽  
Vol 13 (13) ◽  
pp. 27-43
Author(s):  
Tania R. Prochnow ◽  
Bernardo Liberman ◽  
Nadia T. S. Pfeifer ◽  
Marilene G. Porawski ◽  
Norma Marroni ◽  
...  
Keyword(s):  
Metal Accumulation ◽  
Sediment Quality ◽  
Rio Grande ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Pollution Effects ◽  
Hydrographic Basin ◽  
Water And Sediment ◽  
Water And Sediment Quality

This paper shows the results of air, water and sediment quality of Sapucaia stream, which belongs to Guafba Hydrographic Basin, in the State of Rio Grande do Sul, Southern Brazil. The correlations among the concentrations of Al, Cu, Fe, Mn, and Zn, present in the atmosphere, water and sediments, and their bioaccumulation in macrophytes are determined. Different degrees of pollution is characterized through the study of oxidative damage in fishes. The results indicate metal accumulation in macrophytes and fishes.

Percentage land use in the watershed determines the water and sediment quality of 22 marshes in the Great Lakes basin

1999 ◽  
Vol 56 (10) ◽  
pp. 1781-1791 ◽  
Author(s):  
Barb Crosbie ◽  
Patricia Chow-Fraser
Keyword(s):  
Land Use ◽  
Great Lakes ◽  
Best Management Practices ◽  
Agricultural Land ◽  
Sediment Quality ◽  
Soluble Reactive Phosphorus ◽  
Agricultural Runoff ◽  
Water And Sediment ◽  
Water And Sediment Quality

Data from 22 Ontario marshes were used to test the hypothesis that distribution of forested, agricultural, and urban land in the watershed determines the water and sediment quality of Great Lakes wetlands. The first three components of the principal components analysis explained 82% of the overall variation. PC1 ordinated wetlands along a trophic gradient; species richness of submergent vegetation decreased with PC1 scores. PC2 reflected the content of inorganic solids and phosphorus in sediment and the ionic strength of the water. Both PC1 and PC2 scores were positively correlated with percent agricultural land, whereas PC1 scores were negatively correlated with forested land. Correlation between PC1 and agricultural land improved when best-management practices were considered. Accounting for common carp (Cyprinus carpio) disturbance did not confound the relationship between land use and water quality. PC3, driven by soluble reactive phosphorus and nitrate nitrogen concentration in the water, was not correlated with land use. Concentrations of polycyclic aromatic hydrocarbons and Metolachlor were correlated with urban and agricultural land, respectively, and may be useful as land use surrogates. Watershed management favouring the retention of forested land, or creation of buffer strips to trap agricultural runoff in the drainage basin, should help maintain aquatic plant diversity in coastal wetlands.

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