The Regeneration Water Research Based on the Characteristics of Jiangnan Water in the Green Ecological Building Area

2012 ◽  
Vol 209-211 ◽  
pp. 492-495
Author(s):  
Dong Ying Xu ◽  
Si Yuan Luo ◽  
Meng Jie Jiang ◽  
Xu Zhi Fang
Keyword(s):  
Potable Water ◽  
Biological Membrane ◽  
Reclaimed Water ◽  
Water System ◽  
Membrane System ◽  
Raw Water ◽  
Recycled Water ◽  
Building Area ◽  
The Village ◽  
Ecological Building

The recycled water is the important way to solve the shortage of water resources. In China the recycled water use in the jiangnan region is still in start level, rare setting up reclaimed water system inside the village . According to designing water system in jiangnan area, using the high quality miscellaneous drainage for raw water, filtering the all sizes of particle in water, and adopting the biological membrane system decompose the organic therein, the water after disinfection can be as the non potable water. This water system is simple in technology, not occupying the land, four years of recyclable cost and the operation maintenance costs are low.

scholarly journals Human Health Impact of Cross-Connections in Non-Potable Reuse Systems

Water ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1352 ◽  
Author(s):  
Mary Schoen ◽  
Michael Jahne ◽  
Jay Garland
Keyword(s):  
Potable Water ◽  
Reclaimed Water ◽  
Water System ◽  
Health Impact ◽  
Quantitative Microbial Risk Assessment ◽  
Pathogen Inactivation ◽  
Microbial Infection ◽  
Microbial Risk Assessment ◽  
Potable Reuse ◽  
Contamination Event

We used quantitative microbial risk assessment (QMRA) to estimate the microbial risks from two contamination pathways in onsite non-potable water systems (ONWS): contamination of potable water by (treated) reclaimed, non-potable water and contamination of reclaimed, non-potable water by wastewater or greywater. A range of system sizes, event durations, fraction of users exposed, and intrusion dilutions were considered (chlorine residual disinfection was not included). The predicted annual microbial infection risk from domestic, non-potable reuse remained below the selected benchmark given isolated, short-duration intrusion (i.e., 5-day) events of reclaimed water in potable water. Whereas, intrusions of wastewater into reclaimed, non-potable water resulted in unacceptable annual risk without large dilutions or pathogen inactivation. We predicted that 1 user out of 10,000 could be exposed to a 5-day contamination event of undiluted wastewater in the reclaimed, non-potable water system each year to meet the annual benchmark risk of 10−4 infections per person per year; whereas, 1 user out of 1000 could be exposed to a 5-day contamination event of undiluted reclaimed water in the potable water each year. Overall, the predicted annual risks support the use of previously derived non-potable reuse treatment requirements for a variety of ONWS sizes and support the prioritization of protective measures to prevent the intrusion of wastewater into domestic ONWS.

scholarly journals Pathogen survival in recycled water

2009 ◽  
Vol 30 (1) ◽  
pp. 5
Author(s):  
Jatinder PS Sidhu ◽  
Simon G Toze
Keyword(s):  
Drinking Water ◽  
Potable Water ◽  
Reclaimed Water ◽  
Enteric Pathogens ◽  
Health Hazards ◽  
Treated Wastewater ◽  
Recycled Water ◽  
Water Shortages ◽  
Potential Health ◽  
Pathogen Survival

Pathogen survival in recycled water Water shortages affect more than 2 billion people worldwide in over 40 countries, with 1.1 billion people living without sufficient drinking water. Captured stormwater and treated wastewater can be used for supplementing non-potable water supplies. However presence of enteric pathogens in the reclaimed water can lead to potential health hazards.

Recycled water – a source of potable water: City of San Diego health effects study

1996 ◽  
Vol 33 (10-11) ◽  
pp. 285-296 ◽  
Author(s):  
Adam W. Olivieri ◽  
Don M. Eisenberg ◽  
Robert C. Cooper ◽  
George Tchobanoglous ◽  
Paul Gagliardo
Keyword(s):  
Water Supply ◽  
San Diego ◽  
Potable Water ◽  
Research Effort ◽  
Primary Objective ◽  
Human Consumption ◽  
Raw Water ◽  
Unique Combination ◽  
Recycled Water ◽  
The City

During the late 1980's and early 1990's the City of San Diego built and operated a 1,900 m3/d (0.5 Mgal/d) wastewater pilot facility to evaluate the efficacy of a unique combination of treatment methods for the reclamation of wastewater to a quality acceptable for human consumption. The primary objective of the study was to investigate if the City's advanced wastewater treatment system could reliably reduce the contaminants of concern to levels such that the health risks posed by an assumed potable use are no greater than those associated with the present water supply. The results of this substantial research effort indicated that the processes involved can reliably produce a water of equal or better quality than that of the present raw water supply.

scholarly journals A GHG Metric Methodology to Assess Onsite Buildings Non-Potable Water System for Outdoor Landscape Use

2020 ◽  
Vol 10 (4) ◽  
pp. 1339 ◽  
Author(s):  
Geraldine Seguela ◽  
John R. Littlewood ◽  
George Karani
Keyword(s):  
Water Conservation ◽  
Water Reuse ◽  
Potable Water ◽  
Ghg Emissions ◽  
Water System ◽  
Competent Authority ◽  
Recycled Water ◽  
Research Project ◽  
Operational Costs ◽  
The Impact

This paper documents a water:energy greenhouse gas (GHG) metric methodology for a decentralized non-potable water system that was developed as part of a Professional Doctorate in Engineering (DEng) research project by the first author. The project identified the need to investigate the challenges in changing the use of potable water to recycled water for landscape irrigation (LI) and for water features (WFs) at a medical facility case study (MFCS) in Abu Dhabi (AD) (the capital city of the United Arab Emirates (UAE). The drivers for the research project were based on the need for AD to decrease desalinated potable water as well as reduce the environmental impact and operational costs associated with the processing and use of desalinated water. Thus, the aim of the research discussed and presented in this paper was to measure the impact of using recycled and onsite non-potable water sources at the MFCS to alleviate the use of desalinated potable water and reduce associated energy consumption, operational costs, and GHG emissions (latterly in terms of carbon dioxide equivalent (CO2e), for LI and WFs. The analysis of three case scenarios at the MFCS compared different approaches to alleviate energy use, costs, and GHG impacts for the use of recycled water in LI and WFs against a baseline. The findings led to a proposed sustainable water conservation and reuse (SWC) strategy, which helped save 50% desalinated potable water for LI use by soil improvement, building water system audits, and alternate non-potable water reuse. The recommendations for this paper are to develop a SWC strategy forming the basis for a water protocol by the competent authority for regional medical facilities including an assessment methodology for building decentralized non-potable water systems to measure their energy, GHG emissions and financial impact.

scholarly journals Construction of Landscape Fire Security Patterns for Minority Settlements: a case study of reconstruction plan of Xiaozhai village in Guangxi

2020 ◽  
Vol 194 ◽  
pp. 05035
Author(s):  
Manni Wu ◽  
Wenjun Zheng ◽  
Zonglin Liu
Keyword(s):  
Fire Protection ◽  
Water System ◽  
Forest Belt ◽  
Natural Fire ◽  
Pattern Theory ◽  
Planning And Design ◽  
Security Pattern ◽  
Resource Characteristics ◽  
Landscape Ecological ◽  
The Village

Minority settlements have good local landscape features and rich cultural heritage. However, due to complex geographical conditions and lagging economic development, there are many potential security threats in their human settlements. Based on the landscape ecological security pattern theory, aiming at eliminating the practical dilemma of frequent fires and difficult rescue in mountainous settlements in southwestern China, this paper proposes a planning idea to improve the settlement environment’s own disaster resilience and ecological endurance ability through the adjustment of landscape pattern. Taking the reconstruction planning and design of Xiaozhai Village in Longji of Guangxi province as an example, based on the geographical structure and resource characteristics of the village, a four-in-one landscape fire security pattern for mountain settlement is constructed, including building group, road evacuation system, natural fire protection network of water system and biological fire protection forest belt. The study provides a reference for the protection, renewal and re-planning of minority settlement.

scholarly journals Legionnaires' Disease Outbreak at a Resort in Cozumel, Mexico

2016 ◽  
Vol 3 (3) ◽  
Author(s):  
Lee M. Hampton ◽  
Laurel Garrison ◽  
Jessica Kattan ◽  
Ellen Brown ◽  
Natalia A. Kozak-Muiznieks ◽  
...  
Keyword(s):  
United States ◽  
Potable Water ◽  
Water System ◽  
Disease Outbreak ◽  
Community Acquired Pneumonia ◽  
Health Departments ◽  
Medical Providers ◽  
Cozumel Island ◽  
European Working ◽  
Legionnaires Disease

Abstract Background.  A Legionnaires' disease (LD) outbreak at a resort on Cozumel Island in Mexico was investigated by a joint Mexico-United States team in 2010. This is the first reported LD outbreak in Mexico, where LD is not a reportable disease. Methods.  Reports of LD among travelers were solicited from US health departments and the European Working Group for Legionella Infections. Records from the resort and Cozumel Island health facilities were searched for possible LD cases. In April 2010, the resort was searched for possible Legionella exposure sources. The temperature and total chlorine of the water at 38 sites in the resort were measured, and samples from those sites were tested for Legionella. Results.  Nine travelers became ill with laboratory-confirmed LD within 2 weeks of staying at the resort between May 2008 and April 2010. The resort and its potable water system were the only common exposures. No possible LD cases were identified among resort workers. Legionellae were found to have extensively colonized the resort's potable water system. Legionellae matching a case isolate were found in the resort's potable water system. Conclusions.  Medical providers should test for LD when treating community-acquired pneumonia that is severe or affecting patients who traveled in the 2 weeks before the onset of symptoms. When an LD outbreak is detected, the source should be identified and then aggressively remediated. Because LD can occur in tropical and temperate areas, all countries should consider making LD a reportable disease if they have not already done so.

scholarly journals Wastewater treatment in submerged aerated biofilter under condition of high ammonium concentration

2017 ◽  
Vol 24 (3) ◽  
pp. 431-442 ◽  
Author(s):  
Katarzyna Pawęska ◽  
Aleksandra Bawiec ◽  
Krzysztof Pulikowski
Keyword(s):  
Surface Water ◽  
Biological Membrane ◽  
Water Environment ◽  
Membrane System ◽  
Ammonia Nitrogen ◽  
Ammonium Concentration ◽  
Service Areas ◽  
Biogenic Compounds ◽  
Low Efficiency ◽  
Favorable Conditions

Abstract Treatment of wastewater produced in Service Areas (SA) located on expressways and highways is a worldwide problem because of increasing amount of roads and specific composition of those kinds of sewage. Insufficient removal of pollutants from wastewater discharged into surface water may cause serious environmental problems. In the present study efficiency of treatment of wastewater with high ammonium concentration in biological membrane system used on SA was investigated. Concentrations of ammonia nitrogen in wastewater flowing into bioreactor in none of the tested objects did not fall below 99.0 mg of N-NH4·dm−3. Because of high ammonium content in sewage and high pH reaching value about 9, it is almost impossible to create favorable conditions for microorganisms that run purification processes resulting in low efficiency of phosphorus and nitrogen removal (reduction of biogenic compounds did not exceed 15%). Treatment of wastewater consisting mainly of urine with commonly used biological membrane technology has to be widely tested to perform suitable quality of discharged wastewater, to provide safety of surface water environment.

scholarly journals Analisis Pengelolaan Air Berdasarkan Konsep Green Building Pada Greenship

2018 ◽  
Vol 13 (2) ◽  
Author(s):  
Margareta Ajeng Prabawati ◽  
Henita Rahmayanti ◽  
Doddy Rochadi
Keyword(s):  
Water Management ◽  
Management System ◽  
Potable Water ◽  
Processing System ◽  
Green Building ◽  
National Standard ◽  
Water Usage ◽  
Recycled Water ◽  
Water Management System ◽  
Control Water

The purpose of this research is to analyze the water management system at Raden Dewi Sartika Building and provide recommendation in water management in accordance with the existing conditions of the building as an effort of water utilization based on greenship GBCI criteria. Data collecting was conducted by observing the condition of existing water management system in buildings and water. Water demand analysis based on number of building occupants calculated based on the national standard. The analyze of water management on this building using greenship rating tools as the standar. The results of water management research on the building Raden Dewi Sartika get the amount of water requirement of 148,128 liters /day with the amount of waste grey water that can be reprocessed to meet the needs of flushing on the building by 31.8% of the amount of water a day. With greenship, Raden Dewi Sartika Building has fulfilled the benchmarks in the category of recycled water and potable water. But at the potable water category, its processing system was inactive and sub meter water for control water usage was not plugged in. Overall the water management on the building already reach 25% based on the assestment by using greenship

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