Ozonation of a secondary effluent both for fresh water protection and re-use

2006 ◽  
Vol 1 (2) ◽  
Author(s):  
M. Antonelli
Keyword(s):  
Fresh Water ◽  
Secondary Effluent ◽  
Water Protection

Institutionalization Trends in Fresh Water Governance

2021 ◽  
pp. 229-257
Author(s):  
Laurence Boisson de Chazournes
Keyword(s):  
Nineteenth Century ◽  
Fresh Water ◽  
International Organizations ◽  
International Institutions ◽  
Water Governance ◽  
Financial Assistance ◽  
Water Protection

Institutions of a varied nature and with diverse mandates are involved with the protection and management of fresh water. Indeed, there has been an ever-increasing institutionalization trend in fresh water governance since the nineteenth century. As some of the first international institutions to be established, basin organizations and commissions have helped—and continue to help—strengthen cooperation among riparian countries, as well as to facilitate other concerned actors’ involvement in this endeavour. Since the early 1970s, the mandates of international organizations have increasingly included a variety of issues related to water protection and management. Among these issues is the provision of technical and financial assistance, which now serves as a key governance tool. Moreover, partnerships among various stakeholders have also been established and these are explored in this chapter.

Ozonation of a secondary effluent both for fresh water protection and re-use

2006 ◽  
Vol 1 (2) ◽  
Author(s):  
M. Antonelli ◽  
V. Mezzanotte ◽  
C. Nurizzo
Keyword(s):  
Contact Time ◽  
Pilot Scale ◽  
Secondary Effluent ◽  
Water Protection ◽  
Faecal Coliforms ◽  
Colour Removal ◽  
E Coli ◽  
Log Reduction ◽  
Ionic Compounds ◽  
Higher Doses

49 trials were carried out at pilot scale to evaluate ozonation for polishing a nitrified and filtered effluent discharged in a brook, lying in a recreational protected area whose low and irregular flow provides a negligible dilution. Four ozone doses (3, 5, 7.5 and 10 mg O3/L) were tested and contact time was set at 10 minutes for each of the three contact columns. In most cases, at 3 mg O3/L, residual ozone concentration was below detection limit after 10 minutes contact time. For faecal coliforms and E. coli, log reduction increased from 3 mg O3/L to higher ozone doses, among which no appreciable difference was observed. No improvement in disinfection efficiency was seen for contact times over 10 minutes. Complete disinfection was obtained only in few cases, but final counts complying with the limits for discharge were always met. COD removal was low, while colour removal was significant and clearly increasing from 3 mg O3/L to higher doses. The removal of surfactants slightly increased with increasing dose for non ionic compounds, but not for anionic ones. Data confirmed that slight increases in ozone dose involve the release of bacterial organic matter which partially counterbalance the removal of COD.

ANTHROPOGENIC IMPACT ON COASTAL WATER PROTECTION ZONE IN THE RIVER VALLEY OF AI-TODORKA OF THE VILLAGES OF TERNOVKA AND CHERNORECHYA OF THE CITY OF SEVASTOPOL

2020 ◽  
Author(s):  
S. Kudryavtseva ◽  
Keyword(s):  
Drinking Water ◽  
Natural Resources ◽  
Fresh Water ◽  
Coastal Water ◽  
Anthropogenic Impact ◽  
Water Protection ◽  
Federal Law ◽  
Protection Zone ◽  
Drying Up ◽  
The City

The possible consequences of drying up of the most water - bearing tributary of the Chernaya river in the area of the villages of Ternovka and Chernorechya-the Ai-Todorka river due to construction in the valley are considered. One of the main consequences is the depletion of fresh water reserves in the valley of the riverbeds, of which one has already been completely lost, and the second has been significantly changed. As a result, about 3,000 people may lose access to drinking water. The solution to this problem is complicated by the violation of the river's water protection regime - the Ai-Todorka river protection zone (100 meters) is located on a private territory, which does not correspond to the Federal law on the borders of the coastal water protection zone. This issue is currently under consideration by the Prosecutor's office and the Main Department of natural resources and ecology of the city of Sevastopol (Sevprirodnadzor).

Aplikasi metode tahanan jenis dalam studi geologi karst Gua Seropan di Gunung Kidul, Yogyakarta

2017 ◽  
Vol 12 (2) ◽  
pp. 105-116
Author(s):  
Pulung A. Pranantya ◽  
Nurlia Sadikin
Keyword(s):  
Fresh Water ◽  
Ground Surface ◽  
Water Source ◽  
Raw Water ◽  
Limited Information ◽  
Resistivity Method ◽  
Central Java ◽  
Underground River ◽  
Initial Exploration

In terms of geology, most areas in south of the Gunungkidul District in Central Java consist of the Wonosari formation limestone. The land is generally very dry and source of raw water is also difficult to reach. Findings on the existence of underground river in caves, however, indicate the potential amount of water within the area, especially in the eastern part of the Gunungkidul District. Although limited information available, some fishermen have discovered that Seropan cave contains fresh water source. This cave is situated at 65 m below the cliff. Initial exploration, which done using a multichannel resistivity method, confirmed the availability of freshwater in the cave and underground river. The isopach of cave depth is found in ranges of 80 200 m below the ground surface. The water of Seropan cave can be utilized by implementing pipeline or by drilling at the suggested point based on the interpretation results, i.e. 110o2223.6388 EL 8o42.874 SL. [DY1][PP2][DY1]Perbaiki grammarIn terms of geology, most areas in south of Gunungkidul District in Central Java consist of the Wonosari formation limestone. The land is generally very dry and source of raw water is also difficult to reach. Findings on the exixtence of underground river in caves, however, indicate potential amount of water within the area especially in eastern part of Gunungkidul District. Although limited information available, some fishermans has discovered that Seropan cave contain fresh water source. This cave is situated at 65 m below the cliff. Initial exploration, which done using multichannel resistivity method, confirmed the availability of freshwater in the cave and underground river. The iso pach of cave depth is found in ranges of 80 200 m below the ground surface. The water of Seropan cave can be utilized by implementing pipeline or by drilling at the suggested point based on the interpretation results i.e. 110o2223.6388 EL 8o42.874 SL.[PP2]Sudah diperbaiki

STUDY OF POND STATUS IN INDIA : A REVIEW

2017 ◽  
Vol 23 (1) ◽  
Author(s):  
V.K. YADAV ◽  
SONAM SHARMA ◽  
A.K. SRIVASTAVA ◽  
P.K. KHARE
Keyword(s):  
Fresh Water ◽  
Land Surface ◽  
Human Population ◽  
Climate Changes ◽  
Hydrological Cycle ◽  
Habitat Destruction ◽  
Conservation Strategy ◽  
Goods And Services ◽  
Human Use ◽  
Over Exploitation

Ponds are an important fresh water critical ecosystem for plants and animals providing goods and services including food, fodder, fish, irrigation, hydrological cycle, shelter, medicine, culture, aesthetic and recreation. Ponds cover less than 2 percent of worlds land surface. Ponds are important source of fresh water for human use. These are threatened by urbanization, industrialization, over exploitation, fragmentation, habitat destruction, pollution, illegal capturing of land and climate changes. These above factors have been destroying ponds very rapidly putting them in danger of extinction of a great number of local biodiversity. It is necessary to formulate a correct conservation strategy for pond restoration in order to meet the growing needs of fresh water by increasing the human population. Some measures have been compiled and proposed in the present review.

EVALUATION OF PTYCHOBOTHRIDEAN CESTODES USING RANDOM AMPLIFIED POLYMORPHIC DNA (RAPD) MARKERS FROM FRESH WATER FISHES IN GODAVARI BASIN (M.S.) INDIA

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
SUNITA BORDE ◽  
ASAWARI FARTADE ◽  
AMOL THOSAR ◽  
RAHUL KHAWAL
Keyword(s):  
Fresh Water ◽  
Rapd Markers ◽  
Random Amplified Polymorphic Dna ◽  
Band Pattern ◽  
Genomic Variation ◽  
Polymorphic Band ◽  
Rapd Profile ◽  
Band Size ◽  
Pcr Product ◽  
The Common

Ptychobothridean genera like Senga and Circumoncobothrium are the common parasites of fresh water fishes. The genotypic study of these parasites was taken by RAPD. The RAPD profile of these two parasites were not similar to each other as depicted by the band pattern in picture. These results suggest the presence of inter-specific polymorphism among cestode parasites of two different genera for RAPD analysis. The present study demonstrated that genetic differentiation of cestode parasites could be accomplished on the basis of genomic variation with polymorphic band pattern using RAPD. All the detected bands (PCR product) were polymorphic and band size ranged from 500-5000 bp in length. The RAPD of profiles using GBO-31, GBO-32, GBO-33, GBO-34, GBO-35 and GBO-36. Primers were able to characterize inter-specific polymorphism among the two genus ( Senga and Circumoncobothrium ). Genetic analysis suggests that Senga and Circumoncobothrium show genetic diversity with respect to RAPD patterns using all the six primers used for the present study. The genetic distance between the analyzed genuses ranged from 0.14 to 0.80. The differentiation of the two parasites on the basis of genetic markers could greatly facilitate study on the biology of these parasites.

DESCRIPTION OF CIRCUMONCOBOTHRIUM SINGHII N.SP. FROM CLARIAS BATRACUS OF SAVITRI RIVER AT DAPOLI DISTRICT RATNAGIRI (M.S.) INDIA

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
R.R. DANDAWATE
Keyword(s):  
Life Cycle ◽  
Fresh Water ◽  
Summer Season ◽  
Fresh Water Fish ◽  
Water Fish

Present paper deals with study of cestode parasites of genus Circumoncobothrium from fresh water fish Clarius batracus at Savitri river, (Dapoli) for the percentages of infection occurance during summer season,minimum during winter and tolarate during rainy season.The parasite mainly infected the intestine of host and fed on nutrients from digested food. It completed its life cycle in the intestine of host. By camparing different characters of it to identify that the species is new

PREVALENCE OF PSEUDOINVERTA ORAIENSIS IN FRESH WATER FISH, CLARIAS BATRACHUS

2019 ◽  
Vol 25 (1) ◽  
Author(s):  
ADITYA NARAYAN
Keyword(s):  
Fresh Water ◽  
Monsoon Season ◽  
Winter Season ◽  
Uttar Pradesh ◽  
Summer Season ◽  
Clarias Batrachus ◽  
Fresh Water Fish ◽  
Water Fish

The present investigation deals with the prevalence of infection of cestode, Pseudoinverta oraiensis19 parasitizing Clarias batrachus from Bundelkhand Region (U.P.) India. The studies were recorded from different sampling stations of Bundelkhand region of Uttar Pradesh. For this study 360 fresh water fish, Clarias batrachus were examined. The incidence of infection, monsoon season (17.50%) followed by winter season (20.00%) whereas high in summer season (30.00%).

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