scholarly journals Tritiated wastewater treatment and disposal evaluation for 1995

1995 ◽  
Author(s):  
W.L. Allen
Keyword(s):  
Wastewater Treatment ◽  
Treatment And Disposal

Wastewater Treatment and Disposal in the City of Dubrovnik

1989 ◽  
Vol 21 (1) ◽  
pp. 55-66
Author(s):  
J. Margeta ◽  
J. Pupovac ◽  
B. Ivančić
Keyword(s):  
Wastewater Treatment ◽  
Environmental Protection ◽  
Rapid Development ◽  
Specific Method ◽  
Wastewater Disposal ◽  
Sewerage System ◽  
Seaside Resort ◽  
Coastal Sea ◽  
Treatment And Disposal ◽  
The City

Dubrovnik is the most popular tourist seaside resort in Yugoslavia. The rapid development of tourism has necessitated appropriate environmental protection, particularly with regard to the coastal sea. Consequently, the city has constructed a plant for the treatment of wastewater and a submarine outfall. The characteristics of the sewerage system and the coastal sea meant that the wastewater disposal system required a specific method of construction and treatment. This paper presents the system adopted for Dubrovnik and the methodology used to choose the system. Special attention is paid to the problems and drawbacks which occurred during design and operation of the system, as well as to the measures undertaken afterwards for reconstruction of the system.

Wastewater treatment and risk assessment in ocean outfall evaluations

1998 ◽  
Vol 38 (10) ◽  
pp. 309-316
Author(s):  
William F. Garber
Keyword(s):  
Wastewater Treatment ◽  
Los Angeles ◽  
Energy Use ◽  
Epidemiological Studies ◽  
Environmental Risks ◽  
Advanced Treatment ◽  
Negative Effect ◽  
Ocean Outfall ◽  
Treatment And Disposal ◽  
The City

Past evaluations of the success of wastewater treatment and submarine outfall placement and operation have considered only a limited number of parameters affecting the marine and onshore environments. Important questions regarding the best allocation of available funds have not been adequately addressed. The relative contamination of the sea from airborne and landwash contaminants has not been considered. Neither has the increased air pollution deriving from the energy required for advanced treatment. Similarly, regular epidemiological studies to evaluate actual changes in morbidity arising from drastic changes in treatment and disposal have not been made prior to very large committments of funds. Most importantly, little attention has been given to the relative ranking of all environmental risks within a catchment area. The net result is that, when all factors are considered, the very large expenditures and increased energy use for sanitary wastewater treatment and outfall disposal will have a net negative effect on the physical and societal environment. The City of Los Angeles and the Los Angeles Metropolitan area can be used to illustrate this probability.

Wastewater Treatment and Disposal

1996 ◽  
Author(s):  
Daniel Smith ◽  
Ron Kent ◽  
Dennis Prince ◽  
James Crum
Keyword(s):  
Wastewater Treatment ◽  
Treatment And Disposal

Ozonation of wastewater sludge for reduction and recycling

2002 ◽  
Vol 46 (10) ◽  
pp. 71-77 ◽  
Author(s):  
K.-H. Ahn ◽  
K.Y. Park ◽  
S.K. Maeng ◽  
J.H. Hwang ◽  
J.W. Lee ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Economic Assessment ◽  
Pilot Scale ◽  
Wastewater Sludge ◽  
Ozone Treatment ◽  
Sludge Treatment ◽  
Micro Particles ◽  
Belt Press ◽  
Treatment And Disposal

An ozone treatment system was introduced as an alternative method for municipal sludge treatment and disposal. A pilot-scale facility was built to investigate the feasibility of the ozonation for sludge reduction and recycle. The system consists of three main parts; advanced wastewater treatment, sludge ozone treatment and belt press dewatering. Ozonation of wastewater sludge resulted in mass reduction by mineralization as well as volume reduction by improvement of dewatering characteristics. The supernatant of the ozonated sludge, consisting of solubilized organics and micro-particles, proved to be an effective carbon source for denitrification. A simple economic assessment reveals that the ozonation process can be more economical than incineration for sludge treatment and disposal at small- and medium-sized wastewater treatment plants.

Assessing management options for wastewater treatment works in the context of life cycle assessment

1998 ◽  
Vol 38 (11) ◽  
pp. 23-30 ◽  
Author(s):  
F. J. Dennison ◽  
A. Azapagic ◽  
R. Clift ◽  
J. S. Colbourne
Keyword(s):  
Wastewater Treatment ◽  
Global Warming ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Global Warming Potential ◽  
Water Utilities ◽  
Management Options ◽  
Management Regimes ◽  
Treatment And Disposal ◽  
The Uk

This paper presents the preliminary results of a Life Cycle Assessment (LCA) study comparing different wastewater treatment works, operated by Thames Water Utilities Ltd. in the UK. Fifteen works have been studied, representing a range of size and type of treatment works. Five management regimes for centralising sludge treatment and disposal were analyzed in the context of LCA to provide guidance on choosing the best practicable environmental option (BPEO). Consideration of Global warming potential indicates that the four proposed management regimes with centralisation of sludge for treatment and disposal, as adopted by Thames Water Utilities Ltd., is an environmental improvement upon the current practice. One of these options, that of complete centralisation and composting of sludge prior to disposal, exerts the least environmental impact with respect to Global warming potential. This suggests that the adoption of composting at Crawley is environmentally preferable to increasing the digestion facility at this works.

Critical evaluation of wastewater treatment and disposal strategies for Istanbul with regards to water quality monitoring study results

Desalination ◽  
2008 ◽  
Vol 226 (1-3) ◽  
pp. 231-248 ◽  
Author(s):  
Erdogan Okus ◽  
Izzet Ozturk ◽  
Halil Ibrahim Sur ◽  
Ahsen Yuksek ◽  
Seyfettin Tas ◽  
...  
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Critical Evaluation ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Study Results ◽  
Monitoring Study ◽  
Treatment And Disposal

scholarly journals Análisis Microbiológico de Biosólidos para su aprovechamiento en cultivos de tallo corto

2019 ◽  
pp. 31-38
Author(s):  
José Luis Soto-Alcocer ◽  
Ma. Cruz Rivera-Mosqueda ◽  
Alberto Ayala-Islas ◽  
María del Refugio González-Ponce
Keyword(s):  
Wastewater Treatment ◽  
Allium Cepa ◽  
Crop Yield ◽  
Daucus Carota ◽  
Peracetic Acid ◽  
Raphanus Sativus ◽  
P Content ◽  
Treatment And Disposal ◽  
Greenhouse Tests

Sludge and biosolids samples were analyzed microbiologically according to NOM-004-SEMARNAT-2002, of the Intermunicipal System of Wastewater Treatment and Disposal of the municipalities of Rincon (SITRATA) for a period of 10 months in 2017, the most were found within the LMP according to regulations. In addition, it was detected that the use of peracetic acid in doses greater than 0.1 % v/v may be an alternative disinfection in its use in sludge, to reduce the microbiological load, before being used in crops. Physicochemical analyzes were performed on samples of mud and soil to determine their N and P content, finding that the solid mud has 1.19 % of N and 3.51 % of P2O5 determined on a dry basis; which correspond to high values of these macronutrients, essential for crops. Greenhouse tests were carried out with application doses of 0 to 100 percent by weight of biosolids incorporated into the soil, to measure the crop yield of radish (Raphanus sativus), onion (Allium cepa) and carrot (Daucus carota), resulting in Agronomic dose of 20 % w/w the highest yield.

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