scholarly journals PENYEDIAAN AIR SIAP MINUM PADA SITUASI TANGGAP DARURAT BENCANA ALAM (Belajar Dari Kasus Gempa Bumi Yogyakarta Dan Jawa Tengah)

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Robertus Haryoto Indriatmoko ◽  
Wahyu Widayat
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Potable Water ◽  
High Mobility ◽  
Drinking Water Treatment ◽  
Treatment Unit ◽  
Treatment Processes ◽  
Disaster Area ◽  
The Impact ◽  
Potable Water Treatment

A response in an emergency condition  is the most critical thing in natural disaster. In this situation, every thing is in a panic. Any decision must be taken  tactically, quickly and property to minimize the number victims and severity as the impact of disaster. One of the response in an emergency is to provide facility of drinking water treatment unit which has to be located at the respective disaster area. This unit is designed compacly with high mobility, flexible and easily operated to fullfil the potable water need for the victims. The treatment processes use are filtration, adsorbtion and sterilization. The capacity is 1 M3/hour.      Katakunci : Tanggap darurat, air minum, ultra filtrasi,  bencana alam, mobilitas tinggi, tepat sasaran, emergency use, potable water treatment.

scholarly journals Evaluation of high rate sedimentation lab-scale tank performance in drinking water treatment

2018 ◽  
pp. 9-15
Author(s):  
Claudia Patricia Vesga-Rodríguez ◽  
Leonardo David Donado-Garzón ◽  
Monroe Weber-Shirk
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Potable Water ◽  
Low Cost ◽  
Drinking Water Treatment ◽  
High Rate ◽  
Upward Flow ◽  
Cornell University ◽  
Energy Dependent ◽  
Potable Water Treatment

The Cornell University AguaClara program researches ways to improve the process of potable water treatment at low cost and no energy dependent. A High Rate  Sedimentation (HRS) process that uses upward flow and less area than traditional tanks was investigated. The objective was to analyze parameters affecting HRS tank performance including velocity, density of the floc blanket and location of plate settlers in a laboratory scale HRS tank. Different velocities were set during the experiment, and the resulting performance of the floc blanket was evaluated through continuous turbidity measurements. Results demonstrated that the lab-scale tank allows the creation of a floc blanket and is a versatile design with constraints of visibility and accessibility. In addition, performance of the sedimentation tank improves at lower up flow velocities; however, the study suggests that plate settlers at the top of the tank stabilized the floc blanket at higher velocities, as a consequence of denser floc blankets created by the plates.

scholarly journals Life cycle assessment of four potable water treatment plants in northeastern Colombia

2016 ◽  
Vol 11 (2) ◽  
pp. 268 ◽  
Author(s):  
Oscar Orlando Ortíz Rodriguez ◽  
Raquel Amanda Villamizar-Gallardo ◽  
Rafael Guilhermo García
Keyword(s):  
Drinking Water ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Water Treatment ◽  
Potable Water ◽  
Stratospheric Ozone ◽  
Public Utility ◽  
Treatment Processes ◽  
Water Treatment Plants ◽  
Potable Water Treatment

There is currently great concern about the processes that directly or indirectly contribute to the potential for global warming, such as stratospheric ozone depletion or acidification. In this context, and provided that treated water is a basic public utility in urban centers around the world as well as in some rural areas, its impact on the environment is of great interest. Therefore, this study applied the environmental methodology of Life Cycle Assessment (LCA) to evaluate the environmental loads of four potable water treatment plants (PWTPs) located in northeastern Colombia following the international guidelines delineated in ISO 14040. The different stages of the drinking water process were thoroughly assessed, from the catchment point through pumping to the distribution network. The functional unit was defined as 1 m3 of drinking water produced at the plant. The data were analyzed through the database Ecoinvent v.3.01, and modeled and processed in the software LCA-Data Manager. The results showed that in plants PLA-CA and PLA-PO, the flocculation process has the highest environmental load, which is mostly attributable to the coagulant agent, with a range between 47-73% of the total impact. In plants PLA-TON and PLA-BOS, electricity consumption was identified as the greatest impact source, with percentages ranging from 67 to 85%. Treatment processes and techniques, bioclimatic conditions and culturally driven consumption behavior varied from region to region. Furthermore, changes in treatment processes and techniques are likely to affect the environment during all stages of a plant’s operational cycle.

The Characteristics of Chitosan Applied in Drinking Water Treatment

2011 ◽  
Vol 233-235 ◽  
pp. 638-643
Author(s):  
Shao Xiu Li ◽  
Shu Jie Hu ◽  
Dong Mei Li ◽  
Wei Wei Duan ◽  
Wen Qin Xia ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Potable Water ◽  
Specific Property ◽  
Drinking Water Treatment ◽  
Cationic Polymer ◽  
Flocculation Mechanism ◽  
Dissolved Organics ◽  
The Relationship ◽  
Potable Water Treatment

Chitosan is a kind of natural, non-toxic and harmless substance. After its amino-group protonizing, it can form a cationic polymer which has excellent coagulation/flocculation properties. The application of chitosan in potable water treatment for the removal of particulates and dissolved organics has been studied extensively in the last decade. In order to further understand the specific property of chitosan applied in drinking water treatment, this paper introduces the effect of molecule weight and deacetylation of chitosan on coagulation/flocculation and coagulation/flocculation mechanism in drinking water treatment, gives an overview of chitosan characteristics of removal of suspend solids, organics and bacteria in water, particularly, describes the relationship between the removal efficiency of above impurities by chitosan and pH, dosage of chitosan.

Dissolved air flotation in drinking water production

2001 ◽  
Vol 43 (8) ◽  
pp. 9-18 ◽  
Author(s):  
T. Schofield
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Potable Water ◽  
Water Production ◽  
Process Technology ◽  
Dissolved Air Flotation ◽  
Drinking Water Production ◽  
Air Flotation ◽  
Potable Water Treatment ◽  
Dissolved Air

Dissolved Air Flotation (DAF) has become increasingly important in the field of potable water treatment, as a preferred option for treating upland and stored lowland waters. This paper outlines the development of dissolved air flotation (DAF) in potable water treatment, the benefits and disadvantages and the recent advances that has taken the process technology from an art to a science.

scholarly journals Small-scale drinking water treatment unit of filtration and UV disinfection for remote area

2020 ◽  
Vol 20 (6) ◽  
pp. 2106-2118
Author(s):  
Kassim Chabi ◽  
Jie Zeng ◽  
Lizheng Guo ◽  
Xi Li ◽  
Chengsong Ye ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Treatment ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Bacterial Community Composition ◽  
Drinking Water Treatment ◽  
Small Scale ◽  
Treatment Unit ◽  
Remote Areas

Abstract People in remote areas are still drinking surface water that may contain certain pollutants including harmful microorganisms and chemical compounds directly without any pretreatment. In this study, we have designed and operated a pilot-scale drinking water treatment unit as part of our aim to find an economic and easily operable technology for providing drinking water to people in those areas. Our small-scale treatment unit contains filtration and disinfection (UV–C irradiation) stages to remove pollutants from source water. The water quality index was determined based on various parameters such as pH, temperature, dissolved oxygen, nitrate, nitrite, ammonium, phosphorus, dissolved organic carbon and bacteria. Water and media samples after DNA extraction were sequenced using Illumina MiSeq throughput sequencing for the determination of bacterial community composition. After the raw water treatment, the reduction of bacteria concentration ranged from 1 to 2 log10. The average removal of the turbidity, ammonium, nitrite, phosphorus and dissolved organic carbon reached up to 95.33%, 85.71%, 100%, 28.57%, and 45%, respectively. In conclusion, multiple biological stages in our designed unit showed an improvement of the drinking water quality. The designed drinking treatment unit produces potable water meeting standards at a lower cost of operation and it can be used in remote areas.

Is biological treatment a viable alternative for micropollutant removal in drinking water treatment processes?

2013 ◽  
Vol 47 (16) ◽  
pp. 5955-5976 ◽  
Author(s):  
Jessica Benner ◽  
Damian E. Helbling ◽  
Hans-Peter E. Kohler ◽  
Janneke Wittebol ◽  
Elena Kaiser ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Biological Treatment ◽  
Drinking Water Treatment ◽  
Viable Alternative ◽  
Treatment Processes ◽  
Micropollutant Removal
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