Microcosm Wetlands for Wastewater Treatment with Different Hydraulic Loading Rates and Macrophytes

Jing, Shuh-Ren; Lin, Ying-Feng; Wang, Tze-Wen; Lee, Der-Yuan

doi:10.2134/jeq2002.0690

Cited by 47 publications

(24 citation statements)

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“…Emergent vegetation may reduce nutrient concentrations in surface water even more strongly, as has been demonstrated particularly in wetlands used for wastewater treatment (Tanner et al, 1999;Verhoeven & Meuleman, 1999;Meuleman et al, 2002). Several studies have demonstrated that the retention time of water is very important for the amount of nutrients stored in the vegetation (Jing et al, 2002;Busnardo et al, 1992).…”

Section: Factors Influencing Nutrient Retentionmentioning

confidence: 98%

Natural and constructed littoral zones as nutrient traps in eutrophicated shallow lakes

Sollie

Coops²,

Verhoeven

2008

Hydrobiologia

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It is generally known that the water quality of shallow lakes can be influenced significantly by marginal wetlands. In order to study the efficacy of constructed littoral wetlands in the IJsselmeer area (The Netherlands) for water quality improvement, a field survey was carried out in 2003. Vegetation, soil, pore water and surface water characteristics were measured in spring and summer in two types of littoral zones: natural and constructed for 8-16 years. The study showed that constructed wetlands perform well and are suitable to enlarge the vegetated littoral zone in the IJsselmeer area. In both natural and constructed sites vegetation biomass varied between 2,200 g m -2 for helophyte vegetation and 1,300 g m -2 for low herbaceous vegetation. Nutrient concentrations in the pore water of constructed sites tended to be higher than in natural sites. PO 3À 4 and NH þ 4 concentrations in pore water were much lower when vegetation was present, probably as a result of plant uptake. The N and P accumulation rate in the soil of constructed wetlands was 20 g N m -2 y -1 and 3 g P m -2 y -1 in vegetated plots; without vegetation the rate was much lower (8 g N m -2 y -1 and 1.8 g P m -2 y -1 ). We conclude that concerning their effect on water quality, constructed sites may replace natural sites, at least after 8-16 years. Principal component analysis showed a relationship between vegetation biomass and flooding, and nutrient concentrations in soil and pore water. Biomass was negatively correlated with extractable nutrients and positively with soil total N and P content. Flooding duration was negatively related to pore water salinity and positively to pore water nutrients. Due to their high biomass, helophyte stands retained significantly more nutrients than low pioneer vegetation and are therefore more suitable for improving water quality.

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Section: Factors Influencing Nutrient Retentionmentioning

confidence: 98%

Natural and constructed littoral zones as nutrient traps in eutrophicated shallow lakes

Sollie

Coops²,

Verhoeven

2008

Hydrobiologia

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“…The ranking of species is not definitive in the literature. Plant species does not make a difference in many studies (Bachand and Horne, 2000;Jing et al, 2002). Typha latifolia out-performed in some species comparison (Coleman et al, 2001), while in others its efficiency may decreased during winter (Allen et al, 2002).…”

Section: Species Differentiationmentioning

confidence: 99%

“…cold hardiness) are biological attributes for HSSFCW application (IWA, 2000). There are some comparison studies, for different set of species, but they are not always conclusive (Bachand and Horne, 2000;Jing et al, 2002). Also, species applicability can change with latitude and local climate.…”

Section: Introductionmentioning

confidence: 99%

Effect of Macrophyte Species on Subsurface Flow Wetland Performance in Cold Climate

Ouellet-Plamondon¹,

Brisson²,

Comeau³

Self-Sustaining Solutions for Streams, Wetlands, and Watersheds, 12-15, September 2004

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Horizontal subsurface flow constructed wetlands (HSSCW) allows organic matter and nitrogen removal of fish farm effluent prior to streams discharge. The effect of macrophyte species on HSSCW efficiency was tested in ten units in a greenhouse experiment, in summer and winter. Planted units were at least 5% more efficient in pollutant removal than unplanted units in summer and at least 10% in winter. The increase in removal efficiency for planted units was small, mainly because of the low loading conditions of the fish farm effluent. TKN (96% in summer and 88% in winter) and COD (96% in summer) removal were more efficient for Phragmites and Typha, the two species with large rhizomes. Phalaris was more efficient than the others with COD and BOD removal at 95% in winter. Calamagrostis was the least efficient species, with the largest difference being for winter nutrient removal. It was also the species with the lowest belowground: aboveground biomass ratio, around 0.25 compared to above 2 for Typha. Units planted with macrophytes with large belowground biomass showed less seasonal variability.

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“…In Thailand, the Phayao and Koh Phi Phi provinces used 140-180 m 2 and 750 m 2 as horizontal flow wetland system for treatment of different wastewaters [14]. The wetland systems for wastewater treatment normally require large land area [15]. Other authors have evaluated the feasibility of applying constructed wetland in limited land areas in Taiwan, and the results showed that using plant cultivation in wetland areas could remove nutrients much better than without using it [15].…”

Section: Application Of Eco-techniques For Wastewater Treatmentmentioning

confidence: 99%

“…The wetland systems for wastewater treatment normally require large land area [15]. Other authors have evaluated the feasibility of applying constructed wetland in limited land areas in Taiwan, and the results showed that using plant cultivation in wetland areas could remove nutrients much better than without using it [15]. A horizontal surface flow constructed wetland system using sand and reed has been implemented in Can Tho University, Vietnam, for the purpose of evaluating treatment capability and velocity in the tropical condition [16].…”

Section: Application Of Eco-techniques For Wastewater Treatmentmentioning

confidence: 99%

An integrated ecosystem incorporating renewable energy leading to pollution reduction for sustainable development of craft villages in rural area: a case study at sedge mats village in Mekong Delta, Vietnam

Tran

et al. 2016

Energ Sustain Soc

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Background: The sedge mats (dyeing, weaving processes, and small-scale livestock farm at the same place) craft villages in the Mekong Delta (Vietnam) are the most popular craft villages in Vietnam, especially in the Mekong Delta area. These craft villages generate typical emissions such as exhaust gas from burning fuel, wastewater from the sedge mats dyeing and weaving process, wastewater from livestock farm, and solid waste. Methods: In this study, an ecological system, so-called VICRAIZES (Vietnam Craft villages Agro-based Industrial Zero Emission System), has been developed with the purpose to decrease pollution and enhance resource efficiency at those craft villages. The proposed ecosystem focused on measures such as (1) biogas tank (using residue pieces of solid sedge mats from weaving processing) supplied gas for burning the dyeing tank, (2) wastewater treatment system combining three components: innovative septic tank having upward flow thin baffles, anaerobic filter compartment, and bio-pond, and (3) composting area. The system was applied for a number of household craft villages in Dong Thap Province, Vietnam. Results: The results of system demonstration show significant emission decreases: 93 % greenhouse gas (CO 2 and CH 4 ), 97 % BOD 5 in wastewater, around 30 kg/day biodegradable garbage are composted and used as organic fertilizers at the household needs (which increase family income of around 115 million VND/year), low initial investment and operating cost, simple operating procedure, etc., which are favorable and applicable at the low income sedge mats dyeing and weaving craft villages in the Mekong Delta area, Vietnam, and probably at other developing countries. Conclusions: The VICRAIZES system implementation shows remarkable benefits/advantages on environmental, economic, and technical aspects giving real chances for more comprehensive application at similar craft villages in Vietnam and possibly in other developing countries.

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Microcosm Wetlands for Wastewater Treatment with Different Hydraulic Loading Rates and Macrophytes

Cited by 47 publications

References 0 publications

Natural and constructed littoral zones as nutrient traps in eutrophicated shallow lakes

Natural and constructed littoral zones as nutrient traps in eutrophicated shallow lakes

Effect of Macrophyte Species on Subsurface Flow Wetland Performance in Cold Climate

An integrated ecosystem incorporating renewable energy leading to pollution reduction for sustainable development of craft villages in rural area: a case study at sedge mats village in Mekong Delta, Vietnam

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