scholarly journals Wastewater Treatment using Horizontal Subsurface Flow Constructed Wetland

2017 ◽  
Vol Volume-2 (Issue-1) ◽  
pp. 480-482
Author(s):  
Pavan S. Kamble ◽  
Trupti Dalvi ◽  
Keyword(s):  
Wastewater Treatment ◽  
Constructed Wetland ◽  
Subsurface Flow ◽  
Subsurface Flow Constructed Wetland ◽  
Horizontal Subsurface Flow

PENGOLAHAN AIR LIMBAH RUMAH SAKIT MENGGUNAKAN HORIZONTAL SUBSURFACE FLOW CONSTRUCTED WETLAND

2020 ◽  
Author(s):  
Gede H Cahyana
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Removal Efficiency ◽  
Constructed Wetland ◽  
Root Zone ◽  
Subsurface Flow ◽  
Typha Latifolia ◽  
Hospital Wastewater ◽  
Subsurface Flow Constructed Wetland ◽  
Horizontal Subsurface Flow

Activated sludge is a wastewater treatment reactor widely applied for hospital. The reactor requires a mechanical aerator as a source of oxygen. At the same time, Subsurface Flow Constructed Wetland is rarely used. Both types of reactors utilize microbes in reducing pollutants of wastewater. The role of microbes in activated sludge is taken over by microbes that grow in the root zone of Typha latifolia and Vetiver sp. Two laboratory scale reactors were made to get serial data on the performance of the two plants in treating hospital wastewater. The result, the removal efficiency of COD on Q1 = 0.13 l/h and COD on Q2 = 0.43 l/h for Typha latifolia plants were 87.71% and 67.61%. On Vetiver sp. plants were 90,07% and 68,32%. The removal efficiency of BOD5 on Q1 = 0.13 l/h and Q2 = 0.43 l/h for Typha latifolia plants were 90.00% and 71.7%. On Vetiver sp. plants were 91.69% and 73.29%. The efficiency of Total Kjeldahl Nitrogen removal (TKN) Q1 = 0.13 l/h and Q2 = 0.43 l/h for Typha latifolia plants were 91.27% and 61.54%, whereas in Vetiver sp. plants were 92.01% and 62.68%. Horizontal Subsurface Flow Constructed Wetland is capable and feasible for hospital wastewater treatment.

Construction and maintenance cost analyzing of constructed wetland systems

2011 ◽  
Vol 6 (3) ◽  
Author(s):  
K. Gunes ◽  
B. Tuncsiper ◽  
F. Masi ◽  
S. Ayaz ◽  
D. Leszczynska ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Constructed Wetlands ◽  
Constructed Wetland ◽  
Rural Areas ◽  
Subsurface Flow ◽  
Maintenance Cost ◽  
Operational Costs ◽  
Subsurface Flow Constructed Wetland ◽  
Wetland System ◽  
Horizontal Subsurface Flow

Nowadays, use of constructed wetlands for wastewater treatment especially in rural areas has become increasingly preferable. The most important reason behind this fact is its relatively low investment cost over other treatment options depending on economical conditions of the country. Nonetheless, due to lower operational costs of constructed wetlands than other conventional wastewater treatment systems, investment costs could be regarded secondary as of importance. Investment costs could show differences even at regional scale in a country. Choosing a constructed wetland system among “Subsurface Horizontal Flow”, “Subsurface Vertical Flow” or “Free Water Surface Flow”; or designing a hybrid system using concurrent systems plays important role when defining costs of the constructed wetland systems. Due to increasing interest for constructed wetlands since 2003, so many constructed wetland systems have been built in rural parts of Turkey and most of these systems have been designed as horizontal subsurface flow constructed wetland system. As a fact, the cost of horizontal subsurface flow constructed wetlands is comparatively higher than other wetland systems. When different applications in the world are examined, it is observed that mostly horizontal subsurface flow constructed wetland systems are preferred in rural areas. According to the studies within the extent of this work, different constructed wetland types which are built in different regions of Turkey and their expected and realized costs are analyzed and compared with other countries. Moreover, operational costs have been calculated. Consequently, a work to be taken as reference for further scientific studies has been prepared with presented wetland analyses which could be used by especially decision makers and researchers.

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