Closed System Nutrient Recovery Cell: Case Study of Advanced Treatment of Dairy Digester Effluent

2008 ◽  
Author(s):  
Bernard Benjamin Sheff ◽  
Brian J Ross
Keyword(s):  
Closed System ◽  
Nutrient Recovery ◽  
Advanced Treatment

Case Study of Demonstration Project of Typical Chrome Contaminated Sites Remediation

2011 ◽  
Vol 414 ◽  
pp. 203-213 ◽  
Author(s):  
Xing Run Wang ◽  
Xiang Hua Yan ◽  
Qi Wang
Keyword(s):  
Chemical Reduction ◽  
Quality Standard ◽  
Demonstration Project ◽  
Ex Situ ◽  
Contaminated Sites ◽  
Advanced Treatment ◽  
Filter Bed ◽  
Daily Capacity ◽  
Shallow Part

It studied the geological properties and contamination characteristics of soil from contaminated sites of typical chromate plants in western plateau of China. The results indicated that in the shallow part of 0-4m, it was mainly loess-like soil and in the depth of 4-18m, it was mainly gravels and pebbles. The soil had better permeability and ex-situ washing treatment is recommended. The soil was severely contaminated and the concentration of chrome (Ⅵ) was as high as 16,000mg/kg. Based on the analysis, it developed a two-stage demonstration project of countercurrent ex-situ washing plus chemical stabilization with daily capacity of 20m3 soil and a demonstration project of chemical reduction and precipitation plus advanced treatment of filter bed with daily capacity of 200m3 wastewater. After treatment, the concentration of chrome (Ⅵ) in soil was less than 100mg/kg and that in water was reduced to below 0.05mg/L from 1,000mg/L, which can meet the requirements of third-grade groundwater quality standard.

Nutrient recovery and crop yield enhancement in irrigation with reclaimed wastewater: a case study

2016 ◽  
Vol 14 (3) ◽  
pp. 325-330 ◽  
Author(s):  
Pompilio Vergine ◽  
Antonio Lonigro ◽  
Carlo Salerno ◽  
Pietro Rubino ◽  
Giovanni Berardi ◽  
...  
Keyword(s):  
Crop Yield ◽  
Yield Enhancement ◽  
Nutrient Recovery ◽  
Reclaimed Wastewater

Metamorphic veining and mass transfer in a chemically closed system: a case study in Alpine metabauxites (western Vanoise)

2010 ◽  
Vol 29 (3) ◽  
pp. 275-300 ◽  
Author(s):  
A. VERLAGUET ◽  
B. GOFFÉ ◽  
F. BRUNET ◽  
C. POINSSOT ◽  
O. VIDAL ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Closed System ◽  
System A

Reality or myth: “Advanced wastewater treatment technologies cannot be cost competitive with conventional treatment processes”

2011 ◽  
Vol 6 (1) ◽  
Author(s):  
Ali R. Ahmadi Motlagh ◽  
Stephen Lacy ◽  
Madan Arora ◽  
Jim Ross ◽  
Jeff Misenhimer
Keyword(s):  
Wastewater Treatment ◽  
Conventional Treatment ◽  
Treatment Plant ◽  
Advanced Treatment ◽  
Recycled Water ◽  
Treatment Technology ◽  
Treatment Processes ◽  
Treatment Technologies ◽  
Two Alternatives

With shortage of water becoming a major concern in many areas, use of recycled water is a necessity for a growing number of municipalities. This paper describes a case study in which two alternatives were considered for upgrading an existing wastewater treatment plant with the goal of producing recycled water. The first alternative consisted of conventional secondary and tertiary unit processes while the second alternative included the advanced treatment technology of membrane bioreactor (MBR). Also, two alternatives were evaluated for disinfection of recycled water; chlorine gas and UV system. The more advanced treatment technologies (MBR + UV), which produce the higher quality recycled water, resulted in higher cost. The paper discusses the design and project execution approaches as how the more expensive advanced treatment processes were made cost competitive with the conventional treatment processes.

The potential of nutrient reuse from a source-separated domestic wastewater system in Indonesia – Case study: ecological sanitation pilot plant in Surabaya

2007 ◽  
Vol 56 (5) ◽  
pp. 141-148 ◽  
Author(s):  
A.F. Malisie ◽  
M. Prihandrijanti ◽  
R. Otterpohl
Keyword(s):  
Small Volume ◽  
Domestic Wastewater ◽  
Pilot Scale ◽  
The Other ◽  
Nutrient Recovery ◽  
Ecological Sanitation ◽  
Faecal Matter ◽  
Nutrient Reuse ◽  
Cultivation Experiment

Human excreta (faeces and urine) contribute only a small volume in domestic wastewater but are one of the main causes of water pollution. On the other hand, they contain very valuable nutrients to be reused as anthropogenic fertiliser through proper collection, treatment and hygienisation processes. To know the potential of nutrient recovery and reuse in Indonesia, a pilot scale source separation domestic wastewater system has been built in Surabaya and, so far, has shown promising results. Using urine diverting toilets, up to 86% nitrogen, 21% phosphorus and 69% potassium from urine and 12% of nitrogen, 68% of phosphorus and 20% of potassium from the faecal matter can be recovered. The separated urine was stored for 6 months before usage as fertiliser for hygienic reasons, while the separated faecal matter was composted with worms (vermicomposting). In order to investigate the fertilising effect, a preliminary cultivation experiment has been carried out on young rose plants using different fertilisers for 2 months.

Future nutrient recovery from sewage sludge regarding three different scenarios - German case study

2021 ◽  
pp. 130130
Author(s):  
Theresa Constanze Sichler ◽  
Christian Adam ◽  
David Montag ◽  
Matthias Barjenbruch
Keyword(s):  
Sewage Sludge ◽  
Nutrient Recovery

Water balance: case study of a constructed wetland as part of the bio-ecological drainage system (BIOECODS)

2010 ◽  
Vol 62 (8) ◽  
pp. 1931-1936 ◽  
Author(s):  
Khairul Rahmah Ayub ◽  
Nor Azazi Zakaria ◽  
Rozi Abdullah ◽  
Rosmaliza Ramli
Keyword(s):  
Water Balance ◽  
Constructed Wetland ◽  
Closed System ◽  
Drainage System ◽  
Correlation Coefficients ◽  
Storm Water ◽  
Urban Drainage ◽  
Urban Drainage System ◽  
Balance Case

The Bio-ecological Drainage System, or BIOECODS, is an urban drainage system located at the Engineering Campus, Universiti Sains Malaysia. It consists of a constructed wetland as a part of the urban drainage system to carry storm water in a closed system. In this closed system, the constructed wetland was designed particularly for further treatment of storm water. For the purpose of studying the water balance of the constructed wetland, data collection was carried out for two years (2007 and 2009). The results show that the constructed wetland has a consistent volume of water storage compared to the outflow for both years with correlation coefficients (R2) of 0.99 in 2007 and 0.86 in 2009.

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