scholarly journals Automatic measurements of water quality in the wastewater treatment plants.

1985 ◽  
Vol 8 (2) ◽  
pp. 82-86
Author(s):  
Masakatsu Hiraoka ◽  
Kazushi Tsumura
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plants

A study about the use of chemicals in conventional tertiary treatment. Performances comparison of three municipal wastewater treatment plants and pilot plant experiences

2011 ◽  
Vol 6 (1) ◽  
Author(s):  
A. Iborra-Clar ◽  
J.A. Mendoza-Roca ◽  
A. Bes-Pií ◽  
J.J. Morenilla-Martínez ◽  
I. Bernácer-Bonora ◽  
...  
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Pilot Plant ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Secondary Effluent ◽  
Municipal Wastewater Treatment ◽  
Wastewater Reclamation ◽  
Valencian Region ◽  
Municipal Wastewater Treatment Plants

Rainfall diminution in the last years has entailed water scarcity in plenty of European regions, especially in Mediterranean areas. As a consequence, regional water authorities have enhanced wastewater reclamation and reuse. Thus, the implementation of tertiary treatments has become of paramount importance in the municipal wastewater treatment plants (WWTP) of Valencian Region (Spain). Conventional tertiary treatments consist of a physico-chemical treatment of the secondary effluent followed by sand filtration and UV radiation. However, the addition of coagulants and flocculants sometimes does not contribute significantly in the final water quality. In this work, results of 20-months operation of three WWTP in Valencian Region with different tertiary treatments (two without chemicals addition and another with chemicals addition) are discussed. Besides, experiments with a 2 m3/h pilot plant located in the WWTP Quart-Benager in Valencia were performed in order to evaluate with the same secondary effluent the effect of the chemicals addition on the final water quality. Results showed that the addition of chemicals did not improve the final water quality significantly. These results were observed both comparing the three full scale plants and in the pilot plant operation.

Water quality assessment in streams and wastewater treatment plants of Blantyre, Malawi

2007 ◽  
Vol 32 (15-18) ◽  
pp. 1391-1398 ◽  
Author(s):  
S.M.I. Sajidu ◽  
W.R.L. Masamba ◽  
E.M.T. Henry ◽  
S.M. Kuyeli
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Quality Assessment ◽  
Wastewater Treatment Plants ◽  
Water Quality Assessment

A voltammetric electronic tongue as tool for water quality monitoring in wastewater treatment plants

2012 ◽  
Vol 46 (8) ◽  
pp. 2605-2614 ◽  
Author(s):  
Inmaculada Campos ◽  
Miguel Alcañiz ◽  
Daniel Aguado ◽  
Ramón Barat ◽  
José Ferrer ◽  
...  
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Electronic Tongue ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Voltammetric Electronic Tongue

scholarly journals Management of an integrated network of wastewater treatment plants for improving water quality in a river basin

2019 ◽  
Vol 52 (1) ◽  
pp. 358-363
Author(s):  
C.E. Robles-Rodriguez ◽  
A. Ben-Ayed ◽  
J. Bernier ◽  
V. Rocher ◽  
D. Dochain
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
River Basin ◽  
Wastewater Treatment Plants ◽  
Integrated Network

scholarly journals Reuse of effluent discharged from tannery wastewater treatment plants by powdered activated carbon and ultrafiltration combined reverse osmosis system

2016 ◽  
Vol 7 (1) ◽  
pp. 97-102 ◽  
Author(s):  
Am Jang ◽  
Jong-Tae Jung ◽  
Hayoung Kang ◽  
Hyung-Soo Kim ◽  
Jong-Oh Kim
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Activated Carbon ◽  
Reverse Osmosis ◽  
Wastewater Treatment Plants ◽  
Oxygen Demand ◽  
Powdered Activated Carbon ◽  
Tannery Wastewater ◽  
Combined System ◽  
Treatment Processes

We evaluate the applicability of a reverse osmosis (RO) system that combines powdered activated carbon (PAC) and ultrafiltration (UF) to treat the effluent discharged from tannery wastewater treatment plants. Conventional treatment processes such as neutralization, clariflocculation, and biological processes are used to clean the effluent before feeding to the PAC and UF combined RO system. The efficiency of the combined system was evaluated using the chemical oxygen demand Mn (CODMn), color, pH, turbidity, total nitrogen, total phosphate, and conductivity. The PAC was effective in greatly reducing the CODMn and color. The turbidity and silt density index of the UF permeate satisfied the water quality indices required for the RO feed. The RO system was constantly maintained at approximately 75% RO recovery, and the RO permeate satisfied the water quality requirements for reusing the processed water. Therefore, the PAC-UF combined RO system can be used to process effluent discharged from tannery wastewater treatment plants for reuse.

scholarly journals Societal Implications of Forest and Water Body Area Evolution in Czechia and Selected Regions

2021 ◽  
Vol 13 (19) ◽  
pp. 4019
Author(s):  
Diana Carolina Huertas Bernal ◽  
Ratna Chrismiari Purwestri ◽  
Mayang Christy Perdana ◽  
Miroslav Hájek ◽  
Meryem Tahri ◽  
...  
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Land Cover ◽  
Water Body ◽  
Public Perception ◽  
Forest Cover ◽  
Wastewater Treatment Plants ◽  
Water Bodies ◽  
Societal Implications ◽  
Natural Ecosystems

Land cover evolution is an environmental factor that can be used to characterize forest ecosystem services (FES). This study aims to analyze the change in forest cover and water bodies between 1990 and 2018 in the whole Czech Republic, and in the Central Bohemian and South Moravian regions, and its effects on freshwater provision. Additionally, we attempt to understand the societal implications of water quality, public perception, and environmental investment on natural ecosystems. Forest cover and water body data were obtained from the Corine land cover database, while water quality and investment were compiled from the Czech Statistical Office. Public perceptions on the Czech FES were collected from a national survey. Between 1990 and 2018, forest cover has increased by 3.94% and water bodies by 7.65%; however, from 2014 to 2018, severe droughts were reported that compromised the availability of surface water, presumably on artificial structures, causing an increase in the occupied area. Regarding public perception, respondents with less education, and the older population, obtained an assessment of the low performance of the FES, while the water quality and investment indicate that environmental funding has contributed to improving the quality of outflow water from the wastewater treatment plants, fulfilling all the allowed limits of the urban wastewater treatment directive. Hence, a multidisciplinary approach can help decision makers promote policies that integrate environmental management measures, investment protection, and contribute to sustainable development.

Sign in / Sign up

Export Citation Format

Share Document