Water quality and occurrences of protozoa and metazoa in two constructed wetlands treating different wastewaters in Thailand

1997 ◽  
Vol 36 (12) ◽  
pp. 183-188 ◽  
Author(s):  
Thongchai Panswad ◽  
Orathai Chavalparit
Keyword(s):  
Water Quality ◽  
Constructed Wetlands ◽  
Hydraulic Retention Time ◽  
Loading Rate ◽  
Domestic Sewage ◽  
Industrial Estate ◽  
Tropical Conditions ◽  
Physical And Chemical ◽  
Chemical Water

Two constructed wetlands were evaluated regarding their performance in treating different wastewaters under the tropical conditions of Thailand. The first one was for treating the domestic sewage from a governmental institute, whereas the latter was used to improve the quality of the effluent from a central aerated lagoon, for which the influent had been already pretreated by about 100 factories in an industrial estate. The hydraulic loading rate and the hydraulic retention time were 0.015 m3/m2.d and 28 days and 0.3 m3/m2.d and 3 days for the two wetland systems, respectively. The physical and chemical water quality and the occurrences of protozoa and metazoa were monitored for three seasons, each of which had samples taken twice a week for two months. The temperature was quite constant throughout the whole year, ie., 26 to 31°C and 25 to 34°C for the two wetlands, respectively. The water quality of the wetland effluents was rather good; the BOD and TKN were only 4.5 and 3.3 mg/l and 2.7 and 6.8 mg/l for the two cases. A relationship between the filtered BOD and the zoological characteristics was established. As a result, a simple glance at the occurrence of certain metazoa and protozoa can rapidly but approximately predict the water quality of the system.

scholarly journals Assessment of Physico-chemical Water Quality of Birecik Dam, Şanlıurfa, West East Region, Turkey

2015 ◽  
Vol 3 (7) ◽  
pp. 623
Author(s):  
Banu Kutlu ◽  
Ahmet Sesli ◽  
Rıdvan Tepe ◽  
Ekrem Mutlu
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
World Health ◽  
East Region ◽  
Physico Chemical ◽  
Different Depths ◽  
Standard Values ◽  
Physical And Chemical ◽  
Chemical Water

In year 2013, onsite seasonal measurements have been carried out in 4 different points of Birecik Reservoir, and water samples have been taken from surface and different depths. Physical and chemical parameters have been investigated in taken water samples. The result of analysis were obtained in the following range pH (6.98-9), temperature (9.9-26 °C), electrical conductivity (275-373 µs/cm), sodium ( 19.93-22.06 mg/L), potassium (1.-2.2 mg/L), chloride/11.68-21.4, hardness (179-210 mg/L), calcium (41.66-52.9 mg/L), magnesium ((17-18.35 mg/L), sulphate (27.92-43.48 mg/L), dissolved oxygen (7.92-8.83 mg/L), chemical oxygen (0.25-8.70 mg/L), nitrate (0.62-2.48 mg/L), nitrate (0.001-0.008), ammonium (0.01-0.07), phosphate (0.001-0.031 mg/L). The samples were compared with standard values recommended by world health (WHO). The study finalize that Birecik reservoir which was declared to be a threat to the water quality should be arrested at denitrification and nutrient control to halt the degradation of the water.

The nitrogen removal potential of predenitrification systems in sensitive coastal areas

1995 ◽  
Vol 32 (7) ◽  
pp. 135-142
Author(s):  
E. Görgün ◽  
N. Artan ◽  
D. Orhon ◽  
R. Tasli
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Nitrogen Removal ◽  
Retention Time ◽  
Treatment Process ◽  
Hydraulic Retention Time ◽  
Domestic Sewage ◽  
Coastal Areas ◽  
Careful Evaluation ◽  
Denitrification Kinetics

Effective nitrogen removal is now required to protect water quality in sensitive coastal areas. This involves a much more difficult treatment process than for conventional domestic sewage as wastewater quantity and quality exhibits severe fluctuations in touristic zones. Activated sludge is currently the most widely used wastewater treatment and may be upgraded as a predenitrification system for nitrogen removal. Interpretation of nitrification and denitrification kinetics reveal a number of useful correlations between significant parameters such as sludge age, C/N ratio, hydraulic retention time, total influent COD. Nitrogen removal potential of predenitrification may be optimized by careful evaluation of wastewater character and the kinetic correlations.

Impact of Lockdown on Health of the Yamuna river at Delhi Stretch, India

2021 ◽  
Vol 27 (1) ◽  
Author(s):  
MANOJ KUMAR SHUKLA
Keyword(s):  
Water Quality ◽  
Industrial Waste ◽  
Quality Parameters ◽  
Domestic Sewage ◽  
Pollution Monitoring ◽  
Yamuna River ◽  
Industrial Pollutants ◽  
The Impact ◽  
Positive Effect

Present study points out the impact of Lockdown on the health of the Yamuna river at Delhi stretch by comparing prelockdown and Post-lockdown period by studying the reports of pollution monitoring agencies. Delhi segment of the Yamuna is highly polluted, where alongwith domestic sewage a huge quantity of industrial waste is being discharged continuously without proper treatment. Pre lockdown (March 2020) water quality parameters at three sampling stations named as Palla, Nizammuddin Bridge and Okhla barrage U/s in Delhi were, pH were 8.7, 7.3 and 7.2, DO were 17.1 mg/L, not detected in later two sites, BOD were 7.9 mg/L, 57 mg/L and 27 mg/L and COD were 28 mg/L, 90 mg/L and 95 mg/L respectively and postlockdown period (April 2020) the pH was 7.8, 7.2 and 7.1, DO was 8.3 mg/L, 2.4 mg/L and 1.2 mg/L BOD was 2 mg/L, 5.6 mg/ L and 6.1 mg/L and COD were 6 mg/L, 16 mg/L and 18 mg/L respectively. The study of these parameters at three sampling stations reveals that the lack of industrial pollutants discharging due to nationwide lockdown for COVID-19 pandemic had positive effect on water quality of this river. Water quality could be maintained by planned establishment of industries and setup of ETP with without gap between generation and treatment.

scholarly journals Laju Pertumbuhan Rumput Laut Gracilaria sp Melalui Budidaya IMTA (Integrated Multi Trophic Aquaculture) di Pantai Geger, Nusa Dua, Kabupaten Badung, Bali

2017 ◽  
Vol 4 (2) ◽  
pp. 191
Author(s):  
Kadek Yudiastuti ◽  
I Gusti Bagus Sila Dharma ◽  
Ni Luh Putu Ria Puspitha
Keyword(s):  
Water Quality ◽  
Design Method ◽  
Salt Water ◽  
Mesh Size ◽  
General Characteristic ◽  
Quality Parameters ◽  
Seaweed Cultivation ◽  
Randomized Design ◽  
Physical And Chemical ◽  
Chemical Water

Gracilaria sp is red alga which belong to class rhodophyceae. It can grow in shallow salt water with a general characteristic is having a cylindrical and branched thallus form. Seaweed cultivation can be performed through IMTA (Integrated Multi Trophic Aquaculture) method. The basic principle of cultivation through the IMTA method is utilizing service of the low thropic level species in marine ecosystems, such as shells and seaweed.  This method is believed to be able to overcome the environmental problems caused by cultivation activities, such as feces and uneaten feed. This research was perfomed 45 days, from February 25 to April 11, 2017. It was held at Geger Beach, Nusa Dua, Badung Regency, Bali, using a complete randomized design method that consist of three treatments and three repetition for each treatment. Treatment control (T1) consisted of 10 bunches of seaweed 100 grams without the abalone, treatement 2 (T2) consisted of 10 bunches of seaweed 100 grams and 20 abalones and treatement 3 (T3) consisted of 10 bunches of seaweed 100 grams and 40 abalones. The result showed that specific growth rate in Gracilaria sp.  was highest in treatment T1, compared to treatment T2 and T3. This was caused by the cage construction of abalone amd the present of small mesh size net to cover the seaweed  planting, which made the growth was not optimal.  However, the use of a nets system in seaweed cultivation could minimize the loss of thallus. It was proved by the survival rate of seaweed in first, second and third, that is averagely high, ranging from 90% to 100%. Physical and chemical water quality parameters are also measured, and It showed that the water quality was suitable for the cultivation of both, seaweed and abalone.

scholarly journals ANALISIS KESESUAIAN PERAIRAN UNTUK BUDIDAYA IKAN KERAPU MACAN (Epinephelus fuscoguttatu) DI PERAIRAN PULAU TEGAL KECAMATAN TELUK PANDAN KABUPATEN PESAWARAN

2018 ◽  
Vol 6 (2) ◽  
pp. 705 ◽  
Author(s):  
Glenn Valentino ◽  
Abdullah Aman Damai ◽  
Herman Yulianto
Keyword(s):  
Water Quality ◽  
Secondary Data ◽  
Fish Farming ◽  
Primary Data ◽  
Marine Aquaculture ◽  
Quality Of Waters ◽  
Epinephelus Fuscoguttatus ◽  
Tiger Grouper ◽  
Physical And Chemical

Tiger grouper is a marine aquaculture commodities that has good prospects to be developed. One of the areas that could potentially be used as a place of tiger grouper fish farming is the Tegal Island, Pesawaran. The purpose of this research was to analyze the level of water quality for fish farming tiger grouper (Epinephelus fuscoguttatus). This research was carried out in March-May 2017 descriptive analytic nature by doing the observations on the quality of waters which include physical and chemical parameters. The data that used in this research sourced from primary data about the suitability waters of the island while the secondary data is form in research location maps. There were 4 sampling stations which determined with global positioning system (GPS). The results showed that the water quality which is owned by the island's waters on station 1, 2, 3 and 4 were in the quite appropriate category for the cultivation of tiger grouper.

scholarly journals Analisa Kualitas Air Fisika dan Kimia di Danau Pampait (Physical and Chemical Water Quality Analysis in Lake Pampait)

2020 ◽  
Vol 7 (1) ◽  
pp. 75-87
Author(s):  
Ummi Suraya ◽  
Lilia Lilia
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Aquatic Organisms ◽  
Quality Analysis ◽  
Middle Section ◽  
Water Quality Analysis ◽  
Average Temperature ◽  
Physical And Chemical ◽  
Chemical Water ◽  
Quality Measurements

This study aims to determine the water condition of Lake Pampait, KamelohBaru Village, Sebangau District, Palangka Raya City, measured from physical and chemical water quality as a measure of the condition of the water quality in Lake Pampait. The study was conducted for approximately 2 (two) months, namely from June to July 2018. Sampling was carried out in 3 (three) stations, namely inlet (station I), middle section (station II) and outlets (station III). The physical and chemical water quality measurements are carried out directly, namely temperature, brightness, depth, pH (Degrees of Acidity) and DO (Dissolved Oxygen) while indirectly or analyzed in the laboratory are PO4 (Phosphate), NO3 (Nitrate) and NH3 (Nitrate) Ammonia). The results of research on physical and chemical water quality is an average temperature of 23.7 oC. Brightness 28.75 cm, Depth 4.25 m, Degree of Acidity (pH) with an average of 6.03, and Dissolved Oxygen (DO) 2.93 mg/L, Phosphate (PO4), Nitrate (NO3), and Ammonia (NH3) ) 0.932 mg/L, it can be concluded that Lake Pampait can be said to be still not polluted and is still considered good for the life of fish and other aquatic organisms.

Water quality in two catchment areas: a case study of Crocodile (West) and Berg Catchment areas

2014 ◽  
Vol 9 (4) ◽  
pp. 526-533
Author(s):  
S. A. Akinseye ◽  
J. T. Harmse
Keyword(s):  
Water Quality ◽  
Catchment Area ◽  
Pearson Correlation ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Western Cape ◽  
Catchment Areas ◽  
Domestic Use ◽  
Physical And Chemical ◽  
Chemical Water

This study focuses on the different physical and chemical water quality parameters of two catchment areas centring on the extent of water pollution in the two basins. Data containing physical and chemical water quality parameters for the Crocodile (West) Catchment area (Gauteng) and the Berg Catchment area (Western Cape) at reconnaissance level of detail were collected from the Department of Water Affairs (DWA) over a period of 5 years, 2007–2011. The relevant data were screened and sorted using the SPSS Software Version 2.0. The data were subjected to ANOVA statistics to search for significant variations in the water quality parameters of concern across the study period in each of the catchment area. The physical and chemical analyses were carried out to determine whether the water quality falls within the total water quality range as prescribed by DWA and WHO for domestic use. Pearson correlation analyses were used to determine the relationship between physical and chemical water quality parameters and the rainfall data over the study period.

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.

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