Water Safety in California Public Schools Following Implementation of School Drinking Water Policies

Inefficient and non-environmentally friendly absorbent production can lead to much resource waste and go against low carbon and sustainable development. A novel and efficient Mg-Fe-Ce (MFC) complex metal oxide absorbent of fluoride ion (F−) removal was proposed for safe, environmentally friendly, and sustainable drinking water management. A series of optimization and preparation processes for the adsorbent and batch experiments (e.g., effects of solution pH, adsorption kinetics, adsorption isotherms, effects of coexisting anions, as well as surface properties tests) were carried out to analyze the characteristics of the adsorbent. The results indicated that optimum removal of F− occurred in a pH range of 4–5.5, and higher adsorption performances also happened under neutral pH conditions. The kinetic data under 10 and 50 mg·g−1 were found to be suitable for the pseudo-second-order adsorption rate model, and the two-site Langmuir model was ideal for adsorption isotherm data as compared to the one-site Langmuir model. According to the two-site Langmuir model, the maximum adsorption capacity calculated at pH 7.0 ± 0.2 was 204 mg·g−1. The adsorption of F− was not affected by the presence of sulfate (SO42−), nitrate (NO3−), and chloride (Cl−), which was suitable for practical applications in drinking water with high F− concentration. The MFC adsorbent has an amorphous structure, and there was an exchange reaction between OH− and F−. The novel MFC adsorbent was proven to have higher efficiency, better economy, and environmental sustainability, and be more environmentally friendly.

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Study on Mechanism Design of Rural Drinking Water Safety Engineering Project Financing Guarantee

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.361-363.674 ◽

2013 ◽

Vol 361-363 ◽

pp. 674-681

Author(s):

Wei Li

Keyword(s):

Drinking Water ◽

Mechanism Design ◽

Safety Engineering ◽

Project Financing ◽

Water Safety ◽

Public Fund ◽

Engineering Project ◽

Drinking Water Safety ◽

Project Construction ◽

Set Up

As more and more non-public fund entering rural drinking water safety engineering project market; it becomes very necessary to built rural drinking water safety engineering project guarantee mechanism. This paper proposes three steps of mechanism design. Firstly, history data is used to fit multivariate linear equation set up describing relationship between bank loss and key risk factors. Secondly, guarantee fee is calculated through model regression, which is threefold of possible bank loss. Thirdly, guarantee fee is adjusted according to variety of key risk factor in the process of project construction and operating.

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The Water Safety Plan Approach: Application to Small Drinking-Water Systems—Case Studies in Salento (South Italy)

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18084360 ◽

2021 ◽

Vol 18 (8) ◽

pp. 4360

Author(s):

Francesca Serio ◽

Lucia Martella ◽

Giovanni Imbriani ◽

Adele Idolo ◽

Francesco Bagordo ◽

...

Keyword(s):

Drinking Water ◽

Case Studies ◽

Distribution Systems ◽

Water Systems ◽

Water Safety ◽

Quality Of Water ◽

Safety Plan ◽

Water Safety Plan ◽

Drinking Water Systems

Background: The quality of water for human consumption is an objective of fundamental importance for the defense of public health. Since the management of networks involves many problems of control and efficiency of distribution, the Water Safety Plan (WSP) was introduced to address these growing problems. Methods: WSP was applied to three companies in which the water resource assumes central importance: five water kiosks, a third-range vegetable processing company, and a residence and care institution. In drafting the plan, the terms and procedures designed and tested for the management of urban distribution systems were applied to safeguard the resource over time. Results: The case studies demonstrated the reliability of the application of the model even to small drinking-water systems, even though it involved a greater effort in analyzing the incoming water, the local intended use, and the possibilities for managing the containment of the dangers to which it is exposed. This approach demonstrates concrete effectiveness in identifying and mitigating the dangers of altering the quality of water. Conclusions: Thanks to the WSP applied to small drinking-water systems, we can move from management that is focused mainly on verifying the conformity of the finished product to the creation of a global risk assessment and management system that covers the entire water supply chain.

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DEVELOPMENT AND IMPLEMENTATION OF A WATER SAFETY PLAN FOR THE DRINKING WATER SUPPLY SYSTEM OF FLORENCE, ITALY

Environmental Engineering and Management Journal ◽

10.30638/eemj.2020.173 ◽

2020 ◽

Vol 19 (10) ◽

pp. 1813-1822

Author(s):

Cecilia Caretti ◽

Roberta Muoio ◽

Leonardo Rossi ◽

Daniela Santianni ◽

Claudio Lubello ◽

...

Keyword(s):

Drinking Water ◽

Water Supply ◽

Supply System ◽

Water Supply System ◽

Drinking Water Supply ◽

Water Safety ◽

Safety Plan ◽

Water Safety Plan ◽

Drinking Water Supply System

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Implementation of Alberta's drinking water safety plans

Water Quality Research Journal ◽

10.2166/wqrjc.2013.063 ◽

2013 ◽

Vol 49 (1) ◽

pp. 5-9 ◽

Cited By ~ 8

Author(s):

D. C. Reid ◽

K. Abramowski ◽

A. Beier ◽

A. Janzen ◽

D. Lok ◽

...

Keyword(s):

Drinking Water ◽

Effective Action ◽

Main Element ◽

Quality And Safety ◽

Biological Parameters ◽

Water Safety ◽

Drinking Water Safety ◽

Regulatory Approach ◽

Water Safety Plans ◽

Safety Of Drinking Water

Traditionally, the regulatory approach to maintaining the quality and safety of drinking water has largely been a prescriptive one based on the ability of any given supply to meet standards set for a number of different chemical and biological parameters. There are a number of issues around the assumptions and the limitations of a sampling and analysis regime. The basis for such regimes is essentially reactive rather than proactive and, consequently, the cause of the concern may already have impacted consumers before any effective action can be taken. Environment and Sustainable Resource Development has developed a template for recording drinking water safety plans together with guidance notes to help complete them. The template has been developed in MS-Excel and has been designed in a straightforward step-wise manner with guidance on the completion of each sheet. It includes four main risk tables covering each main element of water supply which are pre-populated with commonly found ‘generic’ risks and these are carefully assessed before considering what action is required to deal with significant risks. Following completion of the risk tables, key risks are identified and the interventions required to bring them into control.

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