effluent reclamation Articles
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Performance of a dual-power, multicellular, aerated lagoon system in Corcoran, California
A dual-power, multicellular, aerated (DPMC) lagoon system was designed and constructed for the city of Corcoran, California. The new process brought the plant into a full compliance with California Regional Water Quality Control Board (CRWQCB) effluent limits while saving approximately $110,000 per year in energy costs. The project was a modification of an existing aerated/ facultative (A/F) ...
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Design-build wastewater treatment plant upgrade
Client: City of Andover Completion Date: 1997 Services Provided Design-build Extended aeration Ultraviolet disinfection Nitrification/denitrification Effluent reuse SRF funding When Andover officials realized the existing plant would not meet future needs or new effluent requirements, they decided the design-build method of project delivery would produce a new wastewater ...
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Sustainable and cost-effective municipal wastewater reclamation: treated effluent reuse in agricultural production
Many countries have the problem of a severe water imbalance. This imbalance in water demand vs. supply is due mainly to the relatively uneven distribution of precipitation, high temperatures, increased demands for irrigation water and the impacts of tourism. To alleviate water shortages serious consideration must be given to wastewater reclamation and reuse. In this paper, some good examples of ...
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Reverse osmosis system reclaims 86% wastewater in singapore
The Problem Singapore, a small island-state with few natural resources, currently imports about half of the country’s potable water supply from neighboring Malaysia and efforts are being made by the Singapore government o reduce dependence on imports. The increased success of recycling and reuse of waste water in Singapore is a key strategy to Singapore’s increased self reliance on ...
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Aquatech Supplies One of Most India's Largest Tertiary Treated Sewage Recycle Plants
The Facility Rashtriya Chemical Fertilizers (RCF), a Government of India Undertaking located in Mumbai, is one of India’s largest Public Sector Undertakings (PSU) in manufacturing of Fertilizers and associated Chemicals. RCF is also one of the largest fertilizer and chemical company in Asia, and the leading producer of fertilizers in India. The Problem The water supply body in Mumbai ...
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Advanced treatment of Membrane Bioreactor (MBR) effluents for effective wastewater reclamation
One of the two main objectives of this work is to oxidize MBR effluents with ozone/peroxide in high pH conditions in order to improve oxidation of pharmaceuticals, which could efficiently be rejected by the nanofiltration (NF) stage. The other main objective is to effectively oxidize of dissolved organic carbon (DOC) in MBR effluents in order to decrease fouling in the filtration stage. In this ...
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Reuse and recycling of secondary effluents in refineries employing advanced multi-barrier systems
In this paper the reclamation and reuse of municipal secondary effluents, as well as the reclamation and recycling of refinery secondary effluents, are technically and economically evaluated. It is shown that both practices are feasible and sustainable, and that the reclamation costs depend largely on specific circumstances such as legal requirements, price policy, reuse application, raw water ...
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Evaluation of treatment schemes appropriate for wastewater reuse in Greece
The scope of this paper is to propose wastewater reuse quality criteria and treatment specifications for Greece, taking into consideration reuse priorities and secondary effluent characteristics. The proposed wastewater reclamation criteria and tertiary treatment schemes were evaluated in terms of feasibility and effectiveness through lab-scale experiments. The experimental data were processed by ...
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Ozone-based reclamation of an STP effluent
The system ozone and hydrogen peroxide was used to reclaim wastewater from the secondary clarifier from a Sewage Treatment Plant (STP) of Alcalá de Henares (Madrid-Spain). The assays were performed by bubbling a gas mixture of oxygen and ozone, with ~24 g Nm-3 of ozone concentration, through a volume of wastewater samples for 20 minutes at 25°C . The removal of dissolved ...
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Reverse osmosis system to reclaim wastewater
The Facility Pragati Power Corporation Limited, formerly Delhi Vidyut Board (DVB), was formed by the Government of National Capital Territory (NCT) of Delhi in 1997 for the purpose of generation and distribution of power to the entire area of NCT of Delhi. To bridge the gap between demand and supply and to have reliable power supply to the capital city of Delhi, a 330 MW combined cycle Gas ...
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Correlations of relevant membrane foulants with UF membrane fouling in different waters
Membrane fouling is one of the main obstacles that restricts the more widespread application of UF membrane in both drinking water treatment and reclamation of WWTP secondary effluent. Numerous researchers and engineers have devoted to overcome the membrane fouling in the past decade. However, for better addressing the fouling issue, it is necessary to identify the major membrane foulants in ...
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Dissolved organic nitrogen (DON) during batch denitrification of low concentrations of nitrate using suspended and attached biomass
The occurrence and removal of dissolved organic nitrogen (DON) is an issue of increasing importance for the reclamation of treated wastewater. Effluent DON may act as a precursor of disinfection by-products during wastewater disinfection and may contribute to eutrophication of receiving surface waters. The aim of this study was to understand the effect of the post-denitrification process on ...
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Microbial risk assessment for recreational use of the Chicago Area Waterway System
A microbial risk assessment was conducted to estimate the human health risks from incidental contact recreational activities such as canoeing, boating and fishing in the Chicago Area Waterway System (CAWS) receiving secondary treated, but non-disinfected, effluent from three municipal water reclamation plants. Actual concentrations of the pathogens (pathogenic E. coli [estimated], Giardia, ...
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Agricultural re-use & reclamation of treated effluents: The experience of the Thessaloniki Wastewater Treatment Plant (Thessaloniki, Greece)
Greece is located in Southern Europe. Lying along the shores of the Aegean, Ionian and Mediterranean seas, it thus has a very long coastline. Its terrain consists mainly of mountain and hill country and Greece is, in fact, one of the most mountainous countries in Europe. The climate is typically Mediterranean, featuring mild wet winters and hot dry summers. Continue reading the full ...
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Diamonds, gold and the value of water: The impacts of mining in South Africa
Starting today, Nick Tandi and Anton Earle from SIWI’s African Regional Centre, the 2030 Water Resources Group (2030 WRG) and the South African Ministry for Water will host a week-long knowledge exchange trip to Pretoria, South Africa. The knowledge exchange places emphasis on private sector engagement in multi-stakeholder partnerships related to mining and to finding solutions for water ...
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