Performance evaluation of a natural treatment system for small communities, composed of a UASB reactor, maturation ponds (baffled and unbaffled) and a granular rock filter in series

2017 ◽  
Vol 39 (4) ◽  
pp. 490-502 ◽  
Author(s):  
D. F. C. Dias ◽  
R. G. Passos ◽  
V. A. J. Rodrigues ◽  
M. P. de Matos ◽  
C. R. S. Santos ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Treatment System ◽  
Uasb Reactor ◽  
Small Communities ◽  
Natural Treatment ◽  
In Series ◽  
Natural Treatment System

Performance evaluation of a simple wastewater treatment system comprised by UASB reactor, shallow polishing ponds and coarse rock filter

2008 ◽  
Vol 58 (6) ◽  
pp. 1313-1319 ◽  
Author(s):  
Marcos von Sperling ◽  
Carolina Moreira Oliveira ◽  
Juliana G. B. Andrada ◽  
Valéria M. Godinho ◽  
Fernando A. L. Assunção ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Ammonia Removal ◽  
Treatment System ◽  
Uasb Reactor ◽  
E Coli ◽  
Wastewater Treatment System ◽  
Treatment Processes ◽  
Natural Treatment ◽  
In Series ◽  
Overall Performance

The work investigates a small full-scale wastewater treatment system comprised by the following units in series: UASB reactor, three polishing ponds and one coarse rock filter. The overall performance of the system is analyzed based on three years of monitoring using physical-chemical and biological parameters. Good organic matter, suspended solids and ammonia removal is achieved, together with excellent coliform removal (5.70 log units). Mean effluent concentrations of the main parameters are: BOD: 39 mg/L; COD: 109 mg/L; SS = 41 mg/L; ammonia: 10 mg/L; E. coli: 540 MPN/100 mL, indicating compliance with many regulations for effluent discharge and reuse. Main algal classes found in the ponds and final effluent were chlorophyta and euglenophyta. The system is completely unmechanized and has a relatively small total hydraulic retention time (less than 13 days), compared with most natural treatment processes. No sludge removal from the ponds and filter has been necessary so far.

scholarly journals Natural treatment system for wastewater (NTSW) in a livestock farm, with five years of pilot plant management and monitoring

Chemosphere ◽  
2021 ◽  
pp. 131529
Author(s):  
C.A. Mendieta-Pino ◽  
S.O. Pérez-Báez ◽  
A. Ramos-Martín ◽  
F. León-Zerpa ◽  
S. Brito-Espino
Keyword(s):  
Pilot Plant ◽  
Treatment System ◽  
Plant Management ◽  
Livestock Farm ◽  
Natural Treatment ◽  
Natural Treatment System

Development of the San Diego Creek Natural Treatment System Master Plan

2005 ◽  
Author(s):  
E. W. Strecker ◽  
P. M. Mangarella ◽  
N. Brandt ◽  
E. T. Hesse ◽  
K. M. Rathfelder ◽  
...  
Keyword(s):  
San Diego ◽  
Treatment System ◽  
Master Plan ◽  
Natural Treatment ◽  
Natural Treatment System

Overall performance evaluation of shallow maturation ponds in series treating UASB reactor effluent: Ten years of intensive monitoring of a system in Brazil

2014 ◽  
Vol 71 ◽  
pp. 206-214 ◽  
Author(s):  
Daniel F.C. Dias ◽  
Thiago E. Possmoser-Nascimento ◽  
Valéria A.J. Rodrigues ◽  
Marcos von Sperling
Keyword(s):  
Performance Evaluation ◽  
Uasb Reactor ◽  
Intensive Monitoring ◽  
In Series ◽  
Overall Performance

Development of a natural treatment system consisting of red ball earth and alfalfa for the post-treatment of anaerobically digested livestock wastewater

2014 ◽  
Vol 70 (5) ◽  
pp. 795-802 ◽  
Author(s):  
Xiaochen Chen ◽  
Kensuke Fukushi
Keyword(s):  
Soil Column ◽  
Oxygen Demand ◽  
Post Treatment ◽  
Treatment System ◽  
Livestock Wastewater ◽  
Term Operation ◽  
Nutrient Reuse ◽  
Natural Treatment ◽  
Wastewater Pollution ◽  
Natural Treatment System

With the objective of developing a post-treatment process for anaerobically digested livestock wastewater, an innovative natural treatment system composed of two units is proposed. The first trickling filter unit further reduced biochemical oxygen demand and achieved a certain degree of nitrification. The second soil-plant unit was targeted at the removal and recovery of nutrients N, P and K. For the feasibility study, a bench-scale soil column test was carried out, in which red ball earth and alfalfa were utilized for treating synthetic nutrient-enriched wastewater. Through long-term operation, the nitrification function was well established in the top layers, especially the top 20 cm, although a supplementary denitrification process was still required before discharge. P and K were retained by the soil through different mechanisms, and their plant-available forms that remained in the soil were considered suitable for indirect nutrient reuse. As for alfalfa, with wastewater application it fixed more N from the atmosphere, and directly recovered 6% of P and 4% of K input from wastewater. More importantly, alfalfa was verified to have an indispensable role in stimulating the soil nitrifying microorganisms by sustaining their abundance during substrate (NH3) and oxygen scarcity, and enhancing cell-specific nitrification potential during substrate (NH3) and oxygen sufficiency. The proposed system is expected to be further improved, and adopted as a sound countermeasure for livestock wastewater pollution.

Park 500 Natural Treatment System: From Concept to Operation

2010 ◽  
Vol 2010 (15) ◽  
pp. 2209-2230
Author(s):  
Jay Kirk ◽  
Veronica Jarrin ◽  
James Bays ◽  
Tony Nobinger
Keyword(s):  
Treatment System ◽  
Natural Treatment ◽  
Natural Treatment System
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