Minggu, 13 Maret 2022

Proposed scenario of low carbon development from waste sector in West Papua 

Syafrudin Raharjo1, 5, Saraswati Prabawardani2, 5*, Hendri3, 5, Egi Suarga4, M. Faruk Rosyaridho4, Suriany Ida4, and Julia Kalmirah4
 
1Fishery and Marine Science Faculty, University of Papua 
2*Agriculture Faculty, University of Papua  
3 Forestry Faculty, University of Papua 
4 World Resource Institute, Indonesia
5 Postgraduate Program, University of Papua 
*Email: s.prabawardani@unipa.ac.id  

Abstract. The increasing of population and economic growth, urbanization, development progress
and living standard has accelerated the rate and amount of waste generation. Waste is a serious
problem of a worldwide concern because of its impact on environmental pollution, health and
flood disasters in some drainages and rivers. Proper waste management is needed to reduce or
prevent its negative impacts. For this reason, it is necessary to identify the types of waste and their
potential to produce greenhouse gas emissions in order to obtain an accurate picture in an effort to
formulate policies and strategies for reducing GHG emissions. The method used was thinking
system and dynamic system by looking at the BAU scenario, 29%, 41% and 44% emission
reduction. Based on the model of the dynamics system, a new scenario is needed through the
intervention of waste processing by 3R at TPS and TPA, applying aerobic composting, methane
capture and incineration.


https://iopscience.iop.org/article/10.1088/1755-1315/989/1/012026/meta

Minggu, 27 Februari 2022

Constructed Wetland With Flow Water Surface Type For Elimination Of Aquaculture Wastewater From Catfish (Clarias gariepinus, Var)

Syafrudin Raharjo1, Fitriyah Irmawati E.S2, Marhan Manaf3

1, 2, 3: Faculty of Fishery and Marine Science, University of Papua, Manokwari Papua Barat, Indonesia 98314. 

Corresponding author: s.raharjo@unipa.ac.id

 Abstract. The increased of aquaculture activity have a negative impact for the environment, these activities will result pollutants from aquaculture wastewater. Therefore, aquaculture wastewater must be treatment. One technology that is cheap, easy and effective in controlling aquaculture wastewater is constructed wetlands system. The constructed wetlands system combines plants and microbes activity in treating wastewater. The purpose of this study is to determine the ability of vetiver grass (Chrysopogon zizanioides, L), cyperus plant (Cyperus alternifolius) and water hyacinth (Eichhornia crassipes) at the constructed wetlands system to removing pollutants (NH3 and PO4) of Catfish (Clarias gariepinus, var) wastewater aquaculture. In this study, the constructed wetlands system used Flow Water Surface type and the plants is planted with a floating system using steyrofoam in four treatments, i.e.control (bioball without plant), vetiver grass (C. zizanioides, L), cyperus plant (C. alternifolius) and water hyacinth (E. crassipes). The results showed that the each plant have a different ability to eliminate NH3 and PO4. Vetiver showed NH3 and PO4 removal was 2 - 66.7% and 0 - 75.4%,  cyperus was 0 - 66.7% and 42.4 -71.2% and water hyacinth was 0 – 15.8% and 33.1 - 89.7%.

Keywords: Constructed wetlands, phtyroremidiation, wastewater, catfish

The 4th International Seminar on Sciences IOP Publishing 

IOP Conf. Series: Earth and Environmental Science 187 (2018) 012061  doi :10.1088/1755-1315/187/1/0120611234567890

Bisa download di: https://iopscience.iop.org/article/10.1088/1755-1315/187/1/012061/meta