Control and separation of algae particles from WSP effluent by using floating aquatic plant root mats

Kim, Y.; Kim, W.-J.; Chung, Paul Gene; Pipes, Wesley O.

doi:10.2166/wst.2001.0697

Cited by 7 publications

(4 citation statements)

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“…The elimination of the suspended solid is about 95%, announce that greatest elimination was recorded in the first pond where we noted a significant reduction in turbidity. This means that, the first lagoon played the role of a decantation lagoon, this conclusion is in agreement with the results given by the theories [19,20] . The correlation tests show that the reduction of organic pollution strongly depends on the temperature, consequently, the best elimination yield and thus the weakest organic loads are recorded during the estival period.…”

Section: Resultssupporting

confidence: 91%

Treatment of Wastewater by Natural Lagoon for its Reuse in Irrigation

Driche¹,

Abdessemed²,

Nezzal³

2008

American J. of Engineering and Applied Sciences

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Abstract:The process of natural lagoon consists in purifying the waste water by simple flow of the effluent in not very deep ponds where proliferate bacteria, algae and other living organisms, under a surrounding air and in the presence of a solar radiation. For this study, which is spread out over 3 years (2004)(2005)(2006) and which still continues, we chose the Beni Messous plant of purification by natural lagoon, to locate in Algiers. The parameters considered were: The biological oxygen demand (BOD 5 of SS, 0.075 mg L −1 of Chlorophyll, the pH reaches values superior to 7 testifies to alkaline environment lagoon. These concentrations are generally lower than the standards irrigation.

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Section: Resultssupporting

confidence: 91%

Treatment of Wastewater by Natural Lagoon for its Reuse in Irrigation

Driche¹,

Abdessemed²,

Nezzal³

2008

American J. of Engineering and Applied Sciences

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“…On the other hand, the basic ecological observations are not implausible due to the fact that water hyacinth is well-known for significant pollutant filtering and water clarifying abilities (e.g., Hu et al 1998;Kim et al 2001;Sooknah and Wilkie 2004). Moreover, scientists have observed large algal bloom, loss of fish, and rapid replacement by other INS such as hydrilla following large-scale water hyacinth control in other ecosystem contexts (Clugston 1963;USACE 1973;Bicudo et al 2007)-findings that are generally consistent with the remembrances of interview participants.…”

Section: A Changing Ecosystemmentioning

confidence: 99%

Adaptive Management of Nonnative Species: Moving Beyond the “Either-Or” Through Experimental Pluralism

Evans

Wilkie

Burkhardt

2008

J Agric Environ Ethics

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This paper develops the outlines of a pragmatic, adaptive management-based approach toward the control of invasive nonnative species (INS) through a case study of Kings Bay/Crystal River, a large artesian springs ecosystem that is one of Florida's most important habitats for endangered West Indian manatees (Trichechus manatus). Building upon recent critiques of invasion biology, principles of adaptive management, and our own interview and participant-observer research, we argue that this case study represents an example in which rigid application of invasion biology's a priori imperative to minimize INS has produced counterproductive results from both an ecological and social standpoint. As such, we recommend that INS control in Kings Bay should be relaxed in conjunction with an overall program of adaptive ecosystem management that includes meaningful participation and input from non-institutional stakeholders. However, we also note that adaptive management and INS control are by no means mutually exclusive, in Kings Bay or elsewhere. Instead, we suggest that adaptive management offers a means by which INS control efforts can emerge from-and be evaluated throughongoing scientific research and participatory dialogue about the condition of specific places, rather than non-contextual assumptions about the harmfulness of INS as a general class.

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“…Teir reduction contributes to a better yield on BOD 5 and COD. Te accepted theory on this subject is that which presents aquatic plants are physical barriers that slow down the transportation of total suspended solids towards the outfow of the lagoons and thus contribute to their settling and digestion in the sediments [52]. Also, the absence of plants in the control system led to a strong proliferation of algae which constitute the bulk of suspended matter, causing the high increase in TSS in the nonvegetated control and the maturation lagoons.…”

Section: Reduction Of Total Suspended Solids (Tss)mentioning

confidence: 99%

Eichhornia crassipes Efficacy in Secondary Wastewater Treatment in the Western Highlands of Cameroon

Manekeu Tanetsa,

Lekeufack,

Edzigui Tsimi

et al. 2023

The Scientific World Journal

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Wastewater treatment using lagoons technology is recognised to have potential to protect the environment and preserve water resources. The implementation requires mastery of ecological conditions of operation and management of the plants used. We aimed to contribute to the implementation of macrophyte-based lagoons for wastewater treatment in the Western Highlands of Cameroon. We used two sets of four lagoons in series; one was vegetated with E. crassipes, while the other served as the control. Each set constituted an anaerobic, two facultative, and maturation lagoons. Each lagoon system was supplied with primary-treated domestic wastewater from the wastewater treatment plant of the University of Dschang, Cameroon, at a hydraulic loading rate of 1.13 m3/day. Monthly wastewater samples were collected from the inflow and outflow of each lagoon for physicochemical and bacteriological analyses, and plant growth was assessed biweekly for six months spanning the dry and rainy seasons. Macrophyte lagoons showed positive plant growth during both seasons. The highest plant height (10.67 and 25.21 cm), longer roots (11.3 and 37.41 cm), and the highest number of new buds (14 and 20 buds) were obtained during the dry and rainy seasons, respectively. Plants were significantly ( P < 0.0001) taller in facultative lagoons in the rainy season than in the dry season. Vegetated lagoons significantly ( P < 0.05) contributed to reducing TSS (−08.36% and 82.25%), true color (44.46% and 82.31%), orthophosphates (63.1% and 86.59%), and BOD5 (−56.79% and 56.06%) during the dry and rainy seasons, respectively. 100% elimination of fecal streptococci (FS) and 74.89% and 43.80% of fecal coliforms (FC) were observed in the dry and rainy seasons, respectively. Significant ( P = 0.0019) FS elimination was more in the dry season than in the rainy season. However, the average residual content of FC (190,000 UFC/100 ml) was still higher than WHO limits (≤1000 UFC/100 ml) for nonrestrictive reuse in agriculture. E. crassipes can be efficiently used in lagoon systems for domestic wastewater treatment in the Western Highlands of Cameroon.

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Control and separation of algae particles from WSP effluent by using floating aquatic plant root mats

Cited by 7 publications

References 0 publications

Treatment of Wastewater by Natural Lagoon for its Reuse in Irrigation

Treatment of Wastewater by Natural Lagoon for its Reuse in Irrigation

Adaptive Management of Nonnative Species: Moving Beyond the “Either-Or” Through Experimental Pluralism

Eichhornia crassipes Efficacy in Secondary Wastewater Treatment in the Western Highlands of Cameroon

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