Study of a Constructed Wetland-Pond System for Treatment from Campus Buildings

2012 ◽  
Vol 193-194 ◽  
pp. 176-179
Author(s):  
Wen Sheng Ou ◽  
Jun Hong Lin
Keyword(s):  
Water Quality ◽  
Constructed Wetland ◽  
Loading Rate ◽  
Ornamental Plants ◽  
Septic Tank ◽  
Aquatic Animals ◽  
Pond System ◽  
In Series ◽  
Septic Tank Effluent ◽  
Campus Building

A constructed wetland-pond system consisting of a subsurface-flow (SSF) wetland, and a scenic pond in series was used for reclamation of septic tank effluent from a campus building. The results show that SSF wetlands effectively removed major pollutants under a hydraulic loading rate between 3.6 and 7.1 cm/d, with average efficiencies ranging from 85% to 86% for TSS, and 71% to 84% for BOD5. There were a variety of ornamental plants and aquatic animals established in the scenic pond with good water quality, thus enhancing landscape and ecology amenity in campuses.

Septic Tank Effluent Treatment Using Laboratory-Scale Peat Filters

1994 ◽  
Vol 29 (1) ◽  
pp. 19-38 ◽  
Author(s):  
R.N. Coleman ◽  
I.D. Gaudet
Keyword(s):  
Fecal Coliform ◽  
Loading Rate ◽  
Microbial Colonization ◽  
Effluent Treatment ◽  
Septic Tank ◽  
Upward Flow ◽  
Septic Tank Effluent ◽  
Flow Treatment ◽  
Coarse Gravel ◽  
Bod Removal

Abstract Filter columns were designed, constructed from sand, peat and coarse gravel, and their effectiveness assessed in the treatment of septic tank effluent. An initial loading rate of 4 cm/d was applied to the filter columns in either a downward or upward flow at a temperature of 10°C or 20°C. The loading rate was later increased to 8 cm/d. Filter-column plugging occurred in the downward flow treatment but not in the upward flow treatment. Fecal Coliform removal was usually greater than 95%, BOD removal was greater than 75%, and various removal levels were exhibited for other components. Microbial colonization of peat and gravel was effective as revealed by scanning electron microscopy.

Septic Tank Effluent Treatment by Subsurface Horizontal Flow Wetland

2010 ◽  
Vol 5 (4) ◽  
Author(s):  
Ellina S. Pandebesie ◽  
Ni Wayan Budi Arie
Keyword(s):  
Ground Water ◽  
Removal Efficiency ◽  
Open Space ◽  
Loading Rate ◽  
Domestic Wastewater ◽  
Septic Tank ◽  
Organic Loading Rate ◽  
Organic Loading ◽  
Septic Tank Effluent ◽  
Bod Removal

Domestic wastewater treatment in Indonesia, mostly treat by using septic tanks. The use of septic tanks preferred by the public because of the design, construction, and maintenance are easy and more economical for the system of domestic wastewater disposal. Effluent from the septic tank still contains BOD about 100 mg /l, COD about 250 mg/l and TSS about 100 mg /l. This effluent is still dangerous to public health and is not fulfill wastewater effluent standards yet. If there is open space available, extended treatment of septic tank effluent can be done by field infiltration. This open space must suitable for infiltration without contaminating the ground water or well water. In urban areas with ground water level is high such as Surabaya, water infiltrate into the ground causing the problem. Problems that arise are due to pollution of ground water and surface water contaminated by effluent from the septic tank. Because of these problems, it would require an alternative treatment of septic tank effluent. Appropriate technology would be a simple, economical, easy in operation and maintenance. One of wastewater processing that can be applied to the septic tank effluent is a constructed wetland system. Previous research carried out by using Cyperus papyrus plant with sand media in batch experiments showed satisfactory results. In this study, experiments conducted by using Cyperus papyrus plant with sand media with continuous flow in a horizontal subsurface flow wetland method. Wastewater flows with varying flow 90 ml /min and 180 ml /min. The objective of this research is to determine the ability of a horizontal subsurface flow wetland for treating septic tank effluent. The parameters analyzed were BOD and TSS. The results show the relation of organic loading rate with BOD removal efficiency. The highest organic loading rate of 0.051 kg BOD/m2.d on first day observations has BOD removal efficiency of 73.63% and the lowest organic loading rate of 0.029 kg BOD/m2.d with an efficiency of 70.82%. This shows that BOD removal efficiency is affected by organic loading rate. If BOD loading rate increase, it will decrease BOD removal efficiency. Organic loading rate recommended for domestic wastewater is 0.037-0.4 kg BOD5 /m2.d. Although in this study the organic loading rate exceeds the above recommendations, but efficiency is still good, above 70%.

Water Quality Changes in a Septic Tank Effluent Discharged to the Chalk

1988 ◽  
Vol 2 (4) ◽  
pp. 361-364 ◽  
Author(s):  
H. A. C. MONTGOMERY ◽  
P. J. SHAW ◽  
R. V. CHEESEMAN
Keyword(s):  
Water Quality ◽  
Septic Tank ◽  
Quality Changes ◽  
Septic Tank Effluent

scholarly journals Wetland as revitalization pond at urban area based on the eco hydrology concept

2018 ◽  
Vol 7 (3.29) ◽  
pp. 143
Author(s):  
M Adek Rizaldi ◽  
Lily Montarcih Limantara
Keyword(s):  
Water Quality ◽  
Constructed Wetland ◽  
Catchment Area ◽  
Government Regulation ◽  
Water Quality Management ◽  
Pond System ◽  
Catchment Areas ◽  
Presidential Decree ◽  
Artificial Ponds ◽  
Constructed Stormwater Wetland

Universitas Indonesia (UI) has a campus in Depok with six ponds, five of which are artificial ponds and one of the catchment area that operates in the central Ciliwung Sub-watershed. The ponds (Kenanga, Agathis, Mahoni, Puspa, Ulin and Salam "KAMPUS") are designed as one of the catchment area, referring to Presidential Decree No. 32/1990 about the management of protected areas, ponds as catchment areas, flood controllers, and groundwater runoff. However, due to uncontrolled development in the catchment area of the UI pond system, KAMPUS cascade ponds transformed into a "toilet" which accommodates the liquid and solid waste of its catchment area. The mechanism designed for management in the KAMPUS cascade pond system is to utilize the cascade pond as a stabilization pond (improving water quality). One of them is utilizing Agathis cascade pond as a constructed stormwater wetland system, which is a pretreatment for the inflow to the KAMPUS pond system. This constructed wetland design is planned with several mechanisms: precipitation, filtering, chemical process by utilizing plants for absorption, nutrient transformation and eliminating pathogens. The result shows that this constructed wetland gives the water quality improvement percentage up to 87%. Water quality on effluent conforms with the water quality standards for irrigation and planting (grade 4) referring to Government Regulation No. 82/2001 about Water Quality Management and Pollution Control. 

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