The Experts below are selected from a list of 39063 Experts worldwide ranked by ideXlab platform
Takashi Asano - One of the best experts on this subject based on the ideXlab platform.
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use of treated Municipal Wastewater in irrigated agriculture review of some practices in spain and greece
Agricultural Water Management, 2010Co-Authors: F Pedrero, Ioannis K Kalavrouziotis, J J Alarcon, P H Koukoulakis, Takashi AsanoAbstract:Approximately, seventy (70) percent of world water use including all the water diverted from rivers and pumped from underground is used for agricultural irrigation, so that the reuse of treated Municipal Wastewater for purposes such as agricultural and landscape irrigation reduces the amount of water that needs to be extracted from natural water sources as well as reducing discharge of Wastewater to the environment. Thus, treated Municipal Wastewater is a valuable water source for recycling and reuse in the Mediterranean countries and other arid and semi-arid regions which are confronting increasing water shortages. Treated Wastewater reuse in agriculture is a common practice in the Mediterranean countries and there is a considerable interest in the long-term effects of treated Wastewater on crops intended for human consumption. This paper reviews the fundamentals of agricultural irrigation using treated Municipal Wastewater and the status of Municipal Wastewater reuse in Greece and Spain with studies related to the effects on soils and plants.
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Groundwater recharge with reclaimed Municipal Wastewater: health and regulatory considerations.
Water research, 2004Co-Authors: Takashi Asano, Joseph A CotruvoAbstract:Groundwater recharge with reclaimed Municipal Wastewater presents a wide spectrum of technical and health challenges that must be carefully evaluated prior to undertaking a project. This review will provide a discussion of groundwater recharge and its management with special reference to health and regulatory aspects of groundwater recharge with reclaimed Municipal Wastewater. At present, some uncertainties with respect to health risk considerations have limited expanding use of reclaimed Municipal Wastewater for groundwater recharge, especially when a large portion of the groundwater contains reclaimed Wastewater that may affect the domestic water supply. The proposed State of California criteria for groundwater recharge are discussed as an illustration of a cautious approach. In addition, a summary is provided of the methodology used in developing the World Health Organization's Guidelines for Drinking Water Quality to illustrate how numerical guideline values are generated for contaminants that may be applicable to groundwater recharge.
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Proposed California Regulations for Groundwater Recharge with Reclaimed Municipal Wastewater
Water Science and Technology, 1993Co-Authors: Takashi AsanoAbstract:The proposed California regulations for groundwater recharge with reclaimed Municipal Wastewater are presented with the basis and rationale for key requirements. The treatment and recharge basin requirements have been developed to control the migration of pathogens, nitrogen, and trace organics in the extracted groundwater. The regulations rely on a combination of controls intended to maintain a microbiologically and chemically safe groundwater recharge operation. These regulations provide uniform statewide criteria that will promote groundwater recharge projects using reclaimed Municipal Wastewater.
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Proposed California Regulations for Groundwater Recharge with Reclaimed Municipal Wastewater
Environmental engineering, 1991Co-Authors: Robert H. Hultquist, Richard H. Sakaji, Takashi AsanoAbstract:The proposed California regulations for groundwater recharge with reclaimed Municipal Wastewater are presented with the basis and rationale for key requirements. The treatment and recharge basin requirements have been developed to control the migration of pathogens, nitrogen, and organics in the extracted groundwater. These regulations provide uniform statewide criteria that will promote groundwater recharge projects using reclaimed Municipal Wastewater.
Joseph A Cotruvo - One of the best experts on this subject based on the ideXlab platform.
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Groundwater recharge with reclaimed Municipal Wastewater: health and regulatory considerations.
Water research, 2004Co-Authors: Takashi Asano, Joseph A CotruvoAbstract:Groundwater recharge with reclaimed Municipal Wastewater presents a wide spectrum of technical and health challenges that must be carefully evaluated prior to undertaking a project. This review will provide a discussion of groundwater recharge and its management with special reference to health and regulatory aspects of groundwater recharge with reclaimed Municipal Wastewater. At present, some uncertainties with respect to health risk considerations have limited expanding use of reclaimed Municipal Wastewater for groundwater recharge, especially when a large portion of the groundwater contains reclaimed Wastewater that may affect the domestic water supply. The proposed State of California criteria for groundwater recharge are discussed as an illustration of a cautious approach. In addition, a summary is provided of the methodology used in developing the World Health Organization's Guidelines for Drinking Water Quality to illustrate how numerical guideline values are generated for contaminants that may be applicable to groundwater recharge.
Bashiru Kargbo - One of the best experts on this subject based on the ideXlab platform.
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Seed Germination and Seedling Performance of Rice Grown in Municipal Wastewater
International journal of scientific research in science engineering and technology, 2018Co-Authors: Umaru Mohamed Gassama, Adam Puteh, Jamilu Garba, Bashiru KargboAbstract:The use of Municipal Wastewater for watering purposes is an essential way to utilize it nutrients. Laboratory experiment was conducted in a complete randomized design using sand medium with Municipal Wastewater and MR219 rice seed with the aim to assess the suitability of Municipal Wastewater (treated and untreated) at different concentrations (0, 2.5, 5, 10, 25, 50 and 100%) on seed germination and seedling performance. Significant (p 50%). The concentrations of N, P, K, Ca, Mg, Zn, Fe, Cu and Mn were high in untreated Municipal Wastewater compare to treated Municipal Wastewater. Seeds imbibed with untreated Municipal Wastewater have high seed germination and seedling performance compare to treated Municipal Wastewater. Inhibitory effect on chlorophyll content was observed at >50% concentration of both untreated and treated Municipal Wastewater while promoting effects were observed at lower (
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Influence of Municipal Wastewater on rice seed germination, seedling performance, nutrient uptake, and chlorophyll content
Journal of Crop Science and Biotechnology, 2015Co-Authors: Umaru Mohamed Gassama, Adam Puteh, Mohamed Ridzwan Abd-halim, Bashiru KargboAbstract:The sand medium experiment was conducted in the laboratory with the aim of evaluating the suitability of Municipal Wastewater (treated and untreated) at different concentrations (0, 2.5, 5, 10, 25, 50, and 100%) for irrigation purposes on seed germination, seedling performance, nutrient uptake, and chlorophyll content of rice (MR220). The utilization of Municipal Wastewater for irrigation purposes has developed an important way to exploit the nutrients it contains. The study indicated a significant (P 50%). N, P, K, Ca, Mg, Zn, Fe, Cu, and Mn were high in the untreated Municipal Wastewater compare to treated Municipal Wastewater. Seedlings irrigated with untreated Municipal Wastewater have high seed germination, seedling performance with high nutrient uptake compare to treated Municipal Wastewater. The Municipal Wastewaters showed inhibitory effect on chlorophyll content. The inhibition effect was observed at > 50% concentration of both untreated and treated Municipal Wastewater while promoting effects were observed at lower (< 25%) concentration. The rice MR220 variety showed better growth resistance, tolerance, and adaptability to Wastewater. This can be due to its excellent genetic makeup and capacity to sustain the toxicity. Conclusively, Municipal Wastewater could be recommended as a good source of water and nutrient for seed germination and seedling performance.
Mashallah Rezakazemi - One of the best experts on this subject based on the ideXlab platform.
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Hormones removal from Municipal Wastewater using ultrasound
AMB Express, 2018Co-Authors: Aliakbar Roudbari, Mashallah RezakazemiAbstract:Estrogens are one of the micro-pollutants in the Wastewater which have detrimental effects on water living organisms. The aim of this study was to evaluate the efficiency of ultrasound to reduce the estrogen (E1) and 17 beta-estradiol (E2) from Municipal Wastewater. Hence, a cylindrical batch reactor was designed. The effects of powers, frequency, exposure time and pH on reduction efficiency were investigated. The residual concentration of E1 and E2 hormones was measured in reactor effluent by electrochemiluminescence (ECL) method. The results showed that ultrasound removed 85–96% of both E1 and E2 hormones after 45 min while other parameters changes in the range of their operations. Also, the frequency and power of ultrasound had a significant effect on reduction efficiency of hormones while the exposure had no significant effect. Furthermore, the interaction of power and frequency reduced their efficacy to 64.3% (P_value = 0.005). The result also indicated that the ultrasound waves have high ability to reduce Steroid hormones from Municipal Wastewater. The proposed method can be considered as one of the significant strategies for reduction or destruction of hormones from Wastewater due to the non-generation of dangerous by-products and the low energy consumption.
A A Kazmi - One of the best experts on this subject based on the ideXlab platform.
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UASB/Flash aeration enable complete treatment of Municipal Wastewater for reuse
Bioprocess and Biosystems Engineering, 2012Co-Authors: Abid Ali Khan, Beni Lew, Vasileios Diamantis, Rubia Zahid Gaur, Indu Mehrotra, A A KazmiAbstract:A simple, efficient and cost-effective method for Municipal Wastewater treatment is examined in this paper. The Municipal Wastewater is treated using an upflow anaerobic sludge bed (UASB) reactor followed by flash aeration (FA) as the post-treatment, without implementing aerobic biological processes. The UASB reactor was operated without recycle, at hydraulic retention time (HRT) of 8 h and achieved consistent removal of BOD, COD and TSS of 60–70% for more than 12 months. The effect of FA on UASB effluent post-treatment was studied at different HRT (15, 30 and 60 min) and dissolved oxygen (DO) concentrations (low DO = 1–2 mg/L and high DO = 5–6 mg/L). The optimum conditions for BOD, COD and sulfide removal were 30–60 min HRT and high DO concentration inside the FA tank. The final effluent after clarification was characterized by BOD and COD values of 28–35 and 50–58 mg/L, respectively. Sulfides were removed by more than 80%, but the fecal coliform only by ~2 log. The UASB followed by FA is a simple and efficient process for Municipal Wastewater treatment, except for fecal coliform, enabling water and nutrients recycling to agriculture.
