Simultaneous nitrogen and phosphorus removal from simulated digested piggery wastewater in a single-stage biofilm process coupling anammox and intracellular carbon metabolism

New German design guideline for single stage activated sludge plants

Water Science & Technology ◽

10.2166/wst.2000.0190 ◽

2000 ◽

Vol 41 (9) ◽

pp. 139-145

Author(s):

R. Kayser

Keyword(s):

Activated Sludge ◽

Phosphorus Removal ◽

Design Procedure ◽

Single Stage ◽

Nitrogen And Phosphorus ◽

Nitrogen And Phosphorus Removal ◽

Design Guideline

The German design guideline A 131 “Design of single stage activated sludge plants” was amended in 1999. The main changes of the guideline from 1991 are outlined. The design procedure for plants with nitrogen and phosphorus removal is presented.

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Effect of exposure time ratio on Intermittent Aerated Moving Bed Biofilm Reactor

E3S Web of Conferences ◽

10.1051/e3sconf/202016701008 ◽

2020 ◽

Vol 167 ◽

pp. 01008

Author(s):

He Wang ◽

Hui-qiang Li

Keyword(s):

Exposure Time ◽

Phosphorus Removal ◽

Biofilm Reactor ◽

Moving Bed Biofilm Reactor ◽

Nitrogen And Phosphorus ◽

Nitrogen And Phosphorus Removal ◽

Time Ratio ◽

Do Concentration ◽

Biofilm Process ◽

Biological Nitrogen

This study combined the IA craft, and the goal is to achieve aerobic, anoxic and even anaerobic alternating cycles in the same reactor to enhance biological nitrogen and phosphorus removal. At present, there are many studies on the IA process, but less research on the IAMBBR craft. The IAMBBR craft combines intermittent aeration with a biofilm process, which can further improve the processing capacity of a continuous-flow biofilm reactor. Therefore, it is necessary to conduct a detailed study of the IAMBBR craft. In addition, the exposure time ratio is an important parameter for the operation of the IA craft. By adjusting the exposure time ratio, the DO concentration in the reactor can be controlled, which affects the operation effect of the reactor. Therefore, this chapter mainly explores the effect of exposure time ratio on the operating effect of IAMBBR. Six operating stages were connected: the ratio of CA and exposure time are 3h/3h, 1h/1h, 30min/30min, 15min/15min, and 5min/5min, respectively, to study the removal effect of pollutants.

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Nitrogen and Phosphorus Removal and Biomass Production by the Green Microalgae in Piggery Wastewater

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.599.608 ◽

2012 ◽

Vol 599 ◽

pp. 608-613

Author(s):

Jen Jeng Chen ◽

Yu Ru Li ◽

Meei Fang Shue ◽

Li Ho Tseng ◽

Wen Liang Lai

Keyword(s):

Biomass Production ◽

Phosphorus Removal ◽

Low Cost ◽

Biomass Productivity ◽

Aeration Rate ◽

Nitrogen And Phosphorus ◽

Nitrogen And Phosphorus Removal ◽

Experimental Conditions ◽

Piggery Wastewater ◽

Full Factorial

Use of microalgae to remove inorganic nutrients from wastewater and their great potential for low-cost biomass production is gaining attraction. The effect of piggery wastewater content, aeration rate, cultivation temperature, and light intensity on nitrogen and phosphorus removal and biomass production were studied by using a Box-Behnken experimental design under full factorial methodology. Under experimental conditions considered cultures with aeration increased the ammonium and orthophosphate removal efficiency up to an average of 65.3±17 % and 51±7.2 %, respectively and an increase of biomass productivity ranging from 20.8±11 mg/L.d to 52.3±5.5 mg/L.d. The aeration rate was the most important factor influencing the nutrients removal and biomass production.

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Nitrogen and Phosphorus Removal from Piggery Wastewater by Electrolysis Using Pair of Platinum Group Electrodes and Iron Plate

Journal of Japan Society on Water Environment ◽

10.2965/jswe.28.263 ◽

2005 ◽

Vol 28 (4) ◽

pp. 263-268 ◽

Cited By ~ 2

Author(s):

Daizo TAKAOKA ◽

Mineo IKEMATSU ◽

Yoshihiro KUROKAWA ◽

Masahiro ISEKI ◽

Atsushi YAMADA ◽

...

Keyword(s):

Phosphorus Removal ◽

Nitrogen And Phosphorus ◽

Nitrogen And Phosphorus Removal ◽

Piggery Wastewater ◽

Iron Plate ◽

Platinum Group

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Effects of SRT and DO on nutrient removal in a combined AS-biofilm process

Water Science & Technology ◽

10.2166/wst.1997.0426 ◽

1997 ◽

Vol 36 (12) ◽

pp. 19-27 ◽

Cited By ~ 9

Author(s):

S. H. Chuang ◽

C. F. Ouyang ◽

H. C. Yuang ◽

S. J. You

Keyword(s):

Dissolved Oxygen ◽

Nutrient Removal ◽

Phosphorus Removal ◽

High Efficiency ◽

Phosphorus Uptake ◽

Experimental Results ◽

Biological Nutrient Removal ◽

Nitrogen And Phosphorus ◽

Nitrogen And Phosphorus Removal ◽

Biofilm Process

This study examines the effects of sludge retention time (SRT) and dissolved oxygen (DO) on COD, nitrogen and phosphorus removal in a combined activated sludge - biofilm process. Various SRT (5, 10, 12 and 15 days) and dissolved oxygen (0.1, 0.5, 1.0 and 2.0 mg/l in aerobic stage) conditions are performed during the hybrid process. Experimental results indicate that SRT significantly affects the behavior of nitrogen and phosphorus removal, although the variation of COD removal is only slight in different SRT experiments. The SRT should be controlled for longer than 10 days to achieve efficient nitrogen removal. However, a SRT less than 12 days is deemed necessary to complete the phosphorus removal. The process displays similar characteristics when dissolved oxygen is operated between 1.0 to 2.0 mg/l in the aerobic stage. Moreover, analyzing polyhydroxyalkanoates (PHAs) reveals that phosphorus release and uptake are closely related to PHAs accumulation and utilization, respectively, during anaerobic, anoxic and aerobic stages of the process. The ratio of phosphorus uptake and PHAs utilized, rP/PHAs, denotes a dissimilar trend during anoxic and aerobic stages. The sludge has a high efficiency in utilizing PHAs for phosphorus uptake in anoxic stage when it is under lower COD-SS loading conditions. The value of rP/PHAs ranges from approximately 0.1 to 1.0 mg P/mg PHAs. In addition, experimental results also demonstrate that anoxic phosphorus uptake can improve phosphorus removal in biological nutrient removal processes.

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TREATMENT OF OF PIGGERY WASTEWATER BY BIOPROCESS TECHNOLOGY - UPFLOW SLUDGE BLANKET FILTER (USBF)

Science and Technology Development Journal ◽

10.32508/stdj.v13i1.2081 ◽

2010 ◽

Vol 13 (1) ◽

pp. 48-58

Author(s):

Canh Thanh Truong

Keyword(s):

Phosphorus Removal ◽

Biological Process ◽

Flow System ◽

Anoxic Zone ◽

Nitrogen And Phosphorus ◽

Nitrogen And Phosphorus Removal ◽

Aeration Zone ◽

Piggery Wastewater ◽

Economic Method ◽

Bioprocess Technology

This paper describes a research to use an innovative combined biological process, upflow sludge blanket filter (USBF), that rapidly and economically remove BOD, nitrogen and phosphorus from piggery wastewater. The USBF design is a continuous flow system incorporating the aeration zone, clarifier and anoxic zone into a single tank. The research showed a result of 97%, 80%, 94%, 90% and 85% for COD, BOD5, SS, nitrogen and phosphorus removal, respectively. This is concluded that USBF can be used as a simple and economic method to treat pigerry wastewater.

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