To depict detailed sustainability efforts that have been implemented in campus environments, research was conducted at the Universitas Diponegoro (UNDIP), a leading green campus in Indonesia. The aim of the current study was to explore how sustainable development has been conducted by UNDIP and to identify factors that may indicate the existence of sustainability activity in higher-education institutions (HEIs). Factors affecting sustainability implementation in HEIs were derived using bibliometric analysis. Information on the implemented strategies to maintain the sustainability of HEIs was obtained via a closed questionnaire to 40 relevant experts, and analyzed using strengths, weaknesses, opportunities, and threats (SWOT) analysis, and quantitative strategic-planning matrix (QSPM) analysis. Institutional commitment to sustainability and guidance to implement sustainability in HEIs were found to have the highest scores with regard to internal and external factors. The respondents selected more aggressive strategies for the enhancement of sustainability implementation at UNDIP. Fostering external collaboration should be a priority for UNDIP since this can provide mutual benefits and significant improvement towards achieving Sustainable Development Goals (SDGs). The current study provides a robust self-assessment method for selecting appropriate strategies to maintain HEI sustainability.

This study has purposes calculating GHG emissions using the IPCC calculation methods (default) to estimate the potential for GHG emissions in the reduce, reuse, and recycle (3R) activities in integrated temporary waste storages (ITWSs), waste transportation, and the Jatibarang landfill. The results of this study indicate that the landfill activity has the greatest value of GHG emission potential compared with other activities. Optimization of 3R activities at the landfill site is also considered capable of reducing the GHG emissions of the existing waste by up to 75% without composting.

No abstract

Tow field experiments were conducted during 2008/2009 and 2009/2010 seasons at Sakha Agricultural Research Station , Kafer El-Sheikh, Governorate, Egypt, to study the effect of phosphorus treatments: 30 kg P2O5 and 300 and 600g/fed of phosphorin , Bucillus sp, (phosphate dissolving bacteria) and nitrogen treatments : (100 kg N, Azotobacter sp +60 or 80 kg N/fed, Azospirillum sp + 60 or 80 kg N/fed, Azoto. + Azosp. + 60 or 80 kg N/fed on yield and quality traits of sugar beet. A split plot design with four replications was used with P treatments in the main plots and N treatments in the sub plots. Results revealed that application of 30 kg P2O5 produced the highest root fresh weight, plant dry weight, LAI, yields of roots, sugar and tops and improved juice quality traits in terms of TSS%, sucrose%, purity%, and recoverable sugar %, followed by phosphorin at the rate of 600g and 300 g/fed in a descending order. On the other hand biophosphatic fertilizer decreased sucrose loss to molasses. Application of 100 kg mineral N/fed produced the highest growth traits followed by Azot. + Azosp. with 80 kgN/fed. The highest values of TSS%, sucrose%, and recoverable sugar resulted from either Azoto. or Azosp.+ 60kgN/fed. Increasing N rates from 60 to 80 kg/fed in combination with N fixing bacteria depressed beet quality and increased impurities in beet roots. The highest root and top yields resulted from 100 kg N/fed, while sugar yield was highest with the combination of Azto. + Azosp. With 60 or 80 kg N /fed followed by 100 kg N/fed.

Penggunaan kembali material limbah dengan cara mendaur ulang merupakan salah satu cara efektif untuk menghindari pencemaran lingkungan dan mengurangi volume timbulannya di Tempat Pembuangan Akhir. Penelitian ini dilakukan untuk mengetahui potensi ekonomi kegiatan daur ulang sampah plastik oleh sektor informal di Kecamatan Purwodadi. Penelitian dilakukan melalui survei menggunakan kuesioner terhadap 29 pelaku daur ulang. Hasil penelitian menunjukkan bahwa potensi ekonomi yang terdapat dalam usaha daur ulang sampah plastik pada tiap tingkatan pelaku daur ulang berbeda-beda. Berdasarkan analisis kelayakan ekonomi menggunakan  nilai Net Present Value (NPV), Benefit Cost Ratio (BCR),  dan  Internal Rate of Return (IRR) dapat disimpulkan bahwa usaha daur ulang tingkat penggiling layak secara ekonomi dengan nilai NPV Rp 923.395.260  (NPV > 1), nilai BCR 1,58 (BCR > 1), dan nilai IRR 56,82. Benefit (manfaat) dari implementasi program 3R sampah plastik pada sektor informal secara umum dapat digolongkan menjadi dua manfaat, yaitu manfaat langsung (direct benefit) dan manfaat tidak langsung (indirect benefit). Manfaat langsung (direct benefit) berupa keuntungan penjualan sampah plastik. Keuntungan bersih tiap jenis sampah plastik pada tingkat pemulung  antara Rp 500-Rp 2.600, tingkat bank sampah berkisar antara Rp 100-Rp 400, tingkat pengepul I berkisar antara Rp 91,67-Rp 391,67, tingkat pengepul II berkisar antara Rp 173,46-Rp 473,46, tingkat bandar berkisar antara Rp 186,94-Rp 686,94, dan tingkat penggiling berkisar antara Rp 136,23-Rp 1.136,32. Manfaat tidak langsung (indirect benefit) adanya pengelolaan sampah plastik oleh sektor informal yaitu tereduksinya sampah plastik di Kecamatan Purwodadi sebesar 10,08%.

No abstract

Combination of electrokinetic soil flushing and bioremediation (EKSF-Bio) technology has attracted many researchers attention in the last few decades. Electrokinetic is used to increase biodegradation rate of microorganisms in soil pores. Therefore, it is necessary to use solubilizing agents such as surfactants that can improve biodegradation process. This paper describes the basic understanding and recent development associated with electrokinetic soil flushing, bioremediation, and its combination as innovative hybrid solution for treating hydrocarbon contaminated soil. Surfactant has been widely used in many studies and practical applications in remediation of hydrocarbon contaminant, but specific review about those combination technology cannot be found. Surfactants and other flushing/solubilizing agents have significant effects to increase hydrocarbon remediation efficiency. Thus, this paper is expected to provide clear information about fundamental interaction between electrokinetic, flushing agents and bioremediation, principal factors, and an inspiration for ongoing and future research benefit.

No abstract