Implementation of Community Wetlands for the sanitation of the Cajititlan Lake, Jalisco

2021 ◽  
pp. 14-21
Author(s):  
Juan Luis Caro-Becerra ◽  
Luz Adriana Vizcaíno-Rodríguez ◽  
Ramiro Luján-Godínez ◽  
J. Guadalupe Michel-Parra
Keyword(s):  
Aquatic Vegetation ◽  
Lemna Minor ◽  
Sewage Treatment ◽  
Typha Latifolia ◽  
Basic Function ◽  
Floating Structures ◽  
Sewage Treatment Plants ◽  
Quality Of Water ◽  
Vegetation Species

Wetlands are systems that promote the sustainability and development of a society. The goal of this research was the implementation of a prototype aquatic garden to assess the quality of water in Cajititlán Lake, using sewage treatment plants with the purpose of removing nutrients, phosphates and nitrates among others parameters. This was made possible by floating structures containing aquatic vegetation species like.: Typha latifolia, Lemna minor, Canna indica, Iris pseudacorus, Equisetum arvense, etc. whose basic function is to retain nutrients through phytoremediation processes. The results indicate that the implementation of community wetlands made possible to reduce BOD levels from 220 mg/lt to 12 mg/lt across a surface of 120 m², treating a flow rate of approximately 5.30 gal/min to obtain an effluent in accordance with norm NMX-AA-012-SCFI. It is concluded that community wetlands are suitable ecological alternatives for the treatment of the wastewater discharged directly into the lake.

scholarly journals CONTAMINATION OF WATER WITH HELMINTH EGGS: A CASE STUDY OF SOURANI DAM LAKE-TARTUS GOVERNORATE

2019 ◽  
pp. 3-5
Author(s):  
KANAAN AL-TAMEEMI ◽  
AMAL DAYOUB ◽  
MERVAT MAZLOOM
Keyword(s):  
Water Samples ◽  
Sewage Treatment ◽  
Taenia Saginata ◽  
Hymenolepis Nana ◽  
Sewage Treatment Plants ◽  
Helminth Eggs ◽  
Total Prevalence ◽  
Quality Of Water

Objective: In view of the serious prevalence of helminth and ease of infection, our research focuses on the detection of the prevalence of helminth eggs in the Sourani Dam Lake (Tartus governorate) water reflecting the health services and environmental circumstances in this region. Methods: The study was carried out on water samples of AL-Sourani Dam Lake with the aim to investigate the quality of water from October 2015 to September 2016 and verify the existence of helminth eggs according to their characteristics. Results: Our results showed a presence of helminth eggs such as Ascaris lumbricoides, Taenia saginata, and Hymenolepis nana in water samples. The total prevalence was 1.57 egg/L. T. saginata eggs were the most prevalent, followed by the eggs of A. lumbricoides, while the eggs of H. nana were the least prevalent, especially in summer and autumn. Conclusion: Due to the presence of helminth eggs in samples, it is recommended that sewage treatment plants be established and that health awareness be increased to decrease their prevalence.

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operation

2008 ◽  
Vol 37 (2) ◽  
Author(s):  
Maciej Walczak
Keyword(s):  
Water Quality ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Treatment Plants ◽  
Plant Operation ◽  
Treated Sewage ◽  
Microbiological Parameters ◽  
Microbial Indices

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operationThis paper reports the results of studies of microbiological changes in the water quality of the Vistula and Brda rivers after the opening of sewage treatment plants in Bydgoszcz. The study involved determining the microbiological parameters of water quality. Based on the results obtained, it was found that the quality of the water in both rivers had improved decidedly after the opening of the plants, although an increased number of individual groups of microorganisms was found at the treated sewage outlet from one of the plants.

scholarly journals Causes of polytrophism of three lakes in the Wdzydze Landscape Park

2011 ◽  
Vol 11 (3) ◽  
pp. 97-103
Author(s):  
Jerzy Jańczak ◽  
Wojciech Maślanka ◽  
Kamil Nowiński
Keyword(s):  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Phosphorus Compounds ◽  
Lake Water Quality ◽  
Nitrogen And Phosphorus ◽  
Quality Of Water ◽  
Quality Of Waters ◽  
Lake Inflows

Causes of polytrophism of three lakes in the Wdzydze Landscape ParkIn the lakes Cheb and Słupino, located in the Wdzydze Landscape Park the quality of waters has been deteriorating in recent years. In the hydrologic year 2009 the quality of water was examined three times. Monthly measurements on the lake inflows and outflows were carried out 12 times to determine biogenic loads. In 2010 the supplementary measurements of biogenic loads were taken in the streams five times. According to Vollenweider's criterion, the loads of nitrogen and phosphorus compounds are too big, the heaviest to Lake Cheb. The discharge from the new sewage treatment plant is directed by the inflows into this lake. A similar situation takes place in the inflow to Lake Schodno. Paradoxically, in some catchments the construction of the sewage treatment plant may result in the deterioration of lake water quality.

scholarly journals The Physico-Chemical Quality of Effluents of Selected Sewage Treatment Plants Draining into River Rwizi, Mbarara Municipality, Uganda

2019 ◽  
Vol 11 (01) ◽  
pp. 20-36 ◽  
Author(s):  
Jeninah Atwebembeire ◽  
Morgan Andama ◽  
Jane Yatuha ◽  
Julius Bunny Lejju ◽  
Grace Kagoro Rugunda ◽  
...  
Keyword(s):  
Sewage Treatment ◽  
Chemical Quality ◽  
Sewage Treatment Plants ◽  
Physico Chemical

scholarly journals MORTALITY OF BLACK-BAND MYLEUS Myloplus Schomburgkii DUE TO POOR WATER QUALITY ASSOCIATED WITH OVERPOPULATION OF DUCKWEEDS IN A CULTURE POND IN THE PERUVIAN AMAZONIA

2021 ◽  
Vol 30 (1) ◽  
pp. 107-112
Author(s):  
Germán Augusto MURRIETA-MOREY ◽  
Harvey SATALAYA-ARELLANO ◽  
Clint Sting RAMÍREZ-CHIRINOZ ◽  
Luciano Alfredo RODRÍGUEZ-CHU
Keyword(s):  
Lemna Minor ◽  
Dead Zone ◽  
Management Strategies ◽  
Water Clarity ◽  
Quality Of Water ◽  
Poor Water Quality ◽  
Black Band ◽  
Dead Fish ◽  
Physical And Chemical

Ponds covered with duckweeds release nutrients rapidly, causing problems of eutrophication of the water which can reduce water clarity and quality, creating a hypoxic or anoxic ‘dead zone' lacking sufficient oxygen to support most organisms. In the present study, the sudden mortality of black-band myleus Myloplus schomburgkii Jardine, 1841 drove the investigate of factors that caused the death of the specimens registered in a fish pond in the Peruvian Amazon. After the tallying of dead fish, it was revealed that sixty individuals (75% of the total population) of M. schomburgkii had died. The taxonomic identification of the aquatic plant revealed the presence of “duckweeds” locally named in Peru as “lenteja de agua” Lemna minor distributed throughout the pond. Physical and chemical water parameters revealed low levels of oxygen, acid water, and high levels of nitrate and phosphate. Since duckweeds cannot be completely eliminated from waters that are conducive to its growth and require periodic harvesting to prevent matting, proper management strategies therefore become critical to guarantee good quality of water in the pond and avoid black-band myleus deaths due to imbalances in physical and chemical parameters.

scholarly journals Risk Assessment Analysis in a Municipal Wastewater Treatment Plant

Proceedings ◽  
2019 ◽  
Vol 16 (1) ◽  
pp. 18
Author(s):  
Magdalena Łój-Pilch ◽  
Anita Zakrzewska ◽  
Ewa Zielewicz
Keyword(s):  
Risk Assessment ◽  
Municipal Wastewater ◽  
Sewage Treatment ◽  
Treatment Plant ◽  
Treated Wastewater ◽  
Municipal Sewage ◽  
Proper Function ◽  
Municipal Wastewater Treatment ◽  
Sewage Treatment Plants

Risk management, an aspect of which is risk assessment, is a process supporting the proper function of municipal sewage treatment plants. Many factors affect the quality of treated wastewater. Risk assessment, its analysis, and hierarchization permit the elimination of events with the most destructive impacts on the purification process.

Biological Waste Water Rehabilitation of Sugar Factories by Algocoenosis Correction

2017 ◽  
Vol 21 (3) ◽  
pp. 16-20 ◽  
Author(s):  
V.V. Kul’nev ◽  
V.I. Stupin ◽  
A.A. Borzenkov
Keyword(s):  
Waste Water ◽  
Biological Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Domestic Sewage ◽  
Total Water ◽  
Sewage Treatment Plants ◽  
Total Water Consumption

The article deals with theoretical and practical aspects of biological waste water rehabilitation of sugar factories by algocoenosis correction. This technology allows you to transfer domestic sewage treatment plant of filtration mode fields in the biological treatment ponds mode, significantly reducing the area of sewage treatment plants, thus improving the quality of treated waste water, which will, in turn, use them repeatedly reducing total water consumption.

scholarly journals Ecological risk assessment of a subtropical river influenced by discharges of residues from water and sewage treatment plants

2017 ◽  
Vol 28 (2) ◽  
pp. 156-174 ◽  
Author(s):  
Angélica Megda Silva ◽  
Denis Abessa ◽  
Paulo Augusto Zaitune Pamplin ◽  
Maria Beatriz Bohrer-Morel
Keyword(s):  
Sewage Treatment ◽  
Integrated Approach ◽  
National Standards ◽  
Benthic Community Structure ◽  
Content Type ◽  
Sewage Treatment Plants ◽  
Quality Assessments ◽  
Practical Implications ◽  
Ecotoxicological Assays

Purpose The São Lourenço River (SLR) is used to supply potable waters for the cities of São Lourenço da Serra and Juquitiba, but receives the residues from the water treatment plants (WTPs) and sewage treatment plants (STPs), respectively. The purpose of this paper is to evaluate the impacts of the discharges of Juquitiba’s WTP and STP on the quality of the SLR, by using an integrated approach based on different lines of evidence. Design/methodology/approach Six sampling sites were established along the river and comprised areas situated upstream and downstream of the discharges. Five sampling surveys were performed between 2004 and 2006 for collecting water and sediment samples for ecotoxicological assays. In two of these campaigns, benthic community structure and geochemistry (metals, nutrients and sediment texture) were also assessed. Findings Concentrations of P, Fe and Al in waters exceeded the national standards, but sediments were not considered to be contaminated by metals or nutrients. Water and sediments tended to exhibit marginal toxicities, excluding the sediments from JQT007 and JQT008 that were frequently toxic. Combination of geochemistry, toxicity and ecological indices indicated that some sites are not degraded, but in some stations the benthic alteration may be due to non-measured contaminants, especially in JQT007 and JQT008. Practical implications As the use of waters from SLR for public supply has increased, these results show that action should be taken in order to reverse the environmental degradation of SRL. Originality/value This research combined sediment and water quality assessments in order to provide a more suitable and reliable diagnostic of the environmental quality of the SLR.

Intelligent Reform of Activated Sludge Sewage Treatment Control System

2014 ◽  
Vol 700 ◽  
pp. 451-454
Author(s):  
Xu Ming Ye ◽  
Ao Zhou
Keyword(s):  
Control System ◽  
Energy Conservation ◽  
Treatment Process ◽  
Sewage Treatment ◽  
Emissions Reduction ◽  
Working Process ◽  
Treatment Control ◽  
Quality Of Water ◽  
On Line

Based on the working process of the traditional sewage treatment process, this paper aims at reform the defects of intelligent energy-saving. This system uses various sensors for on-line monitoring of wastewater parameters and uses the PLC to control the air blowers. Under the premise of guarantee the quality of water, this reform system can achieve the effect of energy conservation and emissions reduction.

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