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Cement bonded composites of 1250 kg/m³ were made in the laboratory either as single layer composed of exclusively oil palm empty fruit bunch (EFB); Tropical hardwood sawmill residue (THSR) or randomly mixed particles (40% of EFB and 60% of THSR oven dry wt/wt) OR of 3-layer composed of 1:2:1 ratio (for face layer of THSR; core layer of EFB and back layer of THSR particles, wt/wt, respectively). Composites were produced at 4 levels of CaCl₂ addition (0, 1, 2 and 3% wt/wt based on cement wt) and 6 levels of initial water content of the cement/aggregate mixture (2.5:1:0.5; 2.5:1:1; 2.5:1:1.5; 2.5:1:2; 2.5:1:2.5 and 2.5:1:3; ratio wt/wt based on cement wt plus oven dry wt of particles). Proximate chemical analysis of representative samples reveal hollocellulose content (77.35 and 74.11%); a-cellulose (43.51 and 52.01%); Hemicellulose (22.9 and 20.2%). Lignin (17.8 and 22.5%); Ash (0.91 and 1.85%) and solubility in Alcohol-benzene (1.6 and 3.98%); cold water (2.42 and 3.15%); Hot water (2.93 and 5.06%); and 1% NaOH (23.4 and 26.11%) respectively for EFB and THSR. Also Morphological studies reveal mean fiber length (1.06 and 1.18mm); Fiber diameter (11.75 and 17.40μm), slenderness ratio (55.79 and 35.98) and Rigidity co-efficient (0.38 and 0.47) respectively for EFB and THSR. The above make both particle sources suitable substitutes for virgin fiber/particles from hardwoods. A total of 192 composites were made representing two panels per production mix. Composites were sampled and tested in accordance with provisions of ASTM D1037-2007. Composite properties ranges are MOR (2.61–20.81 MPa); MOE (2180–5764 MPa); IB (0.28–0.75 MPa). WA (16.41–28.11%) and TS (1.26–5.98%). Properties were evaluated and only production mix that met both the requirements of International Organization for Standardization (10S 8335–1987) and Malaysian Standard Institute (MS 934–1984) were recommended. Acceptable composites were produced from production mix of initial water content ≥1.5 or 30% (based on cement wt + oven dry wt of particles, wt/wt) and 2 or 3% CaCl₂ additive in case of single layer composites while ≥ 2 or 36.36% of initial water content is required in 3-layer composite using same additive level. The effects of furnish type and composition, additive level and initial water content on properties were all found significant (P > 0.01) in factorial analysis.

Purpose – This purpose of the research is to investigate the process of manufacturing LDPE recycle thermoplastic composites with reinforcement oil palm empty fruit bunch (OPEFB) biomass microfillers.

Design/Methodology/Approach – Methods of physical and chemical modification of OPEFB fibers into the LDPE matrix and the addition of some compatibilizer such as MAPE and xylene process through melt blending can improve mechanical properties, electrical properties, biodegradability, and improve the morphology of composites.

Research Limitations/Implications – These composites are prepared by the following matrix ratio: filler (70:30)% and filler size (63, 75, 90, and 106) μm. The LDPE plastic is crushed to a size of 0.5–1 cm, then pressed with hot press free heating for 5 min and with a pressure of 10 min at 145 °C. Based on the characterization obtained, the tensile strength and the high impact on the use of 106 μm filler is 13.86 MPa and 3,542.6 J/m², and thermal stability indicates the degradation temperature (T₀) 497.83 °C. FT-IR analysis shows the presence of functional groups of cellulose and lignin molecules derived from TKKS collected in the composite.

Practical Implications – Based on the characterization obtained, this composite can be applied as furniture material and vehicle dashboard.

Originality/Value – Composites obtained from recycle of LDPPE plastics waste has some advantages such as good compatibility and high tensile strength. This composite used the OPEFB filler whose size is in micrometer, and so this product is different from other products.

This study aims to determine the optimum model of oil palm empty bunches (OPEB) management, to determine the optimal number of OPEB in waste management, which is then recommended to the company, and to know the achievement of various goals/targets with limited availability of resources.

This research uses quantitative and qualitative approaches. Quantitative approach is done by processing the data for financing and profit analysis in OPEB waste management which is then used for resource approach. A qualitative approach is undertaken for weighing purposes in the analytic hierarchical program (AHP) analysis. The research location was determined purposively in the crude palm oil mill of PT. Pundi Lahan Khatulistiwa in Ambawang, Kubu Raya Regency.

In order that the optimal settlement can achieve the goal/target of minimal environmental pollution, low cost and profit gain, the amount of OPEB that must be managed by the company is 311 tons prioritized for productive plants compost of 66.67 tons, organic fertilizer of 11 tons and mushroom growing media of 233.33 tons. Consequently, the company's cost of IDR 4.000.000.000 still spares IDR 2.004.694.000. The OPEB management as oyster mushroom promises a relatively high profit compared to other OPEB managements even though the cost is not the least.

This research is one of the few studies that examines the waste management model of palm oil empty bunches, mainly located in West Kalimantan, Indonesia. Originality is seen from the use of optimization analysis tools with integration of AHP with goal programming.

The purpose of this paper is sixfold: first, to know the ability of area carrying capacity to the development of downstream oil palm industry; second, to know the potential for the development of downstream oil palm industry in efforts to improve the community through employment and business opportunities in the regions; third, to find eco-friendly institutional arrangement strategies of oil palm farming in order to spur economic growth and development; fourth, to formulate strategies for potential environmental impact as a result of institutional arrangement and development of downstream oil palm industry, both in regional and national scope; fifth, to predict the economic multiplier effect as impact of institutional arrangement and development of oil-palm-based downstream industry; and sixth, to include production centers and development areas of oil-palm-based downstream industry in potential areas.

Research location was in potential areas of oil palm plantation development, either in the form of plasma through state-owned enterprises (BUMN) and private-owned enterprises (BUMS), or in the form of self-supporting by community. The research locations were divided into two parts, namely the land area and the coastal area. The land area of Riau consisted of Kampar, Rokan Hulu and Kuantan Singingi Regency, while the coastal area of Riau consisted of Pelalawan, Siak, Bengkalis, Indragiri Hilir, Indragiri Hulu and Rokan Hilir Regency. Both research areas had different productivity which was caused by differences in soil fertility. The required data were primary and secondary data.

Plantation activities have increased the mobility of goods in the villages, causing plantation activities to also open business and employment opportunities for people who are able to accept these opportunities. Since post-1998 crisis, the growth of oil palm plantation area in Riau increased sharply, namely in 1998, the area of oil palm plantations was 901,276 ha, in 2012, 1,119,798 ha and increased to 2,103,175 ha at the end of 2017. Through economic activities that produce goods and services required during the plantation process and the development, downstream industries will have backward linkages. The development of oil palm plantations in Riau has had an impact on economic activities in rural areas. The result of the research in the field is that the average income of farmers in the plantation subsector (especially oil palm) is Rp4,576,696 per month or $5,781.09 per year. The impact on investment in the estate subsector has been felt by rural communities. This condition also affects the purchasing power of the people, resulting in the increase of mobility of goods and people. During the period 2009–2016, rural communities enjoyed a high level of prosperity. During this period, the price of fresh fruit bunch at the farm level was quite profitable. On the other hand, the production of the plantation area also increased compared to the previous period. The impact of rising prices and increasing production of farmers is that the farmers’ welfare index in the countryside had a positive value of 0.43. This index showed the increase of farmers’ welfare from the previous period by 43 percent.

There are few previous studies which have comprehensively and specifically reviewed the regional economic empowerment through institutional arrangement and development of oil-palm-based downstream industry. The development of oil palm plantations aims to eliminate poverty and underdevelopment, especially in rural areas. In addition, it also pays attention to equity. In broad sense, agricultural development which is based on plantations aims to improve the welfare of the community so that there is a change in the pattern of life of the surrounding community. On the other hand, the success of plantation development that is based on oil palm agribusiness is expected to reduce income inequality between community groups and between regions.

The objective of this study was to determine the pulping and paper making potentials of oil palm (E guineensis). Fibrous material from the whole trunk (WT), empty fruit bunch (EFB, fronds (FDS) and depithed trunk (DT) were evaluated using proximate chemical analysis, fiber morphological and related characteristics. Effect of active alkali (AA) % as Na₂O on kraft pulping properties and the handsheet paper propertie was studied. Proximate chemical analysis reveal acceptable cellulose content for EFB (43.51%), FDS (51.13%) and DT (53.80%) while WT (32.44) is unacceptable. Low lignin content obtained (17.8−21.8%) suggests easier pulping characteristics. The high % NaOH solubility of WT (26.05%) and FDS (32.1%) suggest potential of high effluent loads. Fiber morphological studies revealed that approximately 83% of fibers are ≤ 1.5 mm in length thus putting oil palm as a short fiber source. The slenderness ratio ranges from 33.44 to 82.80; Runkelratio from 0.40 to 0.63; flexibility co-efficient from 57.20 to 71.46 and rigidity co-efficient from 0.29 to 0.43. Studies of pulping properties reveal that as active alkali % was increased the percentage total pulp yield, % screened pulp yield, % screened rejects, pulp kappa number, klason lignin and tear index of resultant pulp/handsheet all/each decreased. Conversely, as active alkali % was increased the Brust index, double fold number, breaking length, tensile index of paper handsheets and pulp brightness were each enhanced. It was concluded that in pulping of WT AA% should be < 14 and EFB pulping should be ≤ 14 in order to have acceptable yield. Also in order to have acceptable tear index, AA% should be ≤ 16. It is being recommended that trunks should be depithed in order to have acceptable yield. The fibrous material from oil palm make acceptable raw material for paper making and are good hardwood substitutes. Paper produced when bleached can be used for printing and writing papers while the unbleached grades can be used for wrapping and package papers and for corrugated boards.

The study aimed to investigate epoxy composites reinforced with mechanical performances, thermal decomposition and ignitibility of natural fiber (NF) and doped with 5 wt.% of varying flame-retardant (FR) compounds. The incorporation of ammonium polyphosphate (APP) and zinc borate (ZB) showed improvement in modulus and elongation to break compared to the empty fruit bunch-filled epoxy (control). However, slightly lower tensile and impact strengths were recorded in all FR-containing composites.

Among the FR-loaded specimens, enhancement in flexural property was observed in composites with APP, whereas the addition of ZB and alumina trihydrate (ATH) resulted in the reduction of flexural strength. Thermogravimetric analysis results indicated that the introduction of APP and ATH negatively impacted the thermal degradation temperature (T_d) of the NF-filled composites. Greater mass residue with FR-filled composites, where increment was in the range from 32-80 per cent compared to the control, was observed, with the greatest being the ZB-containing formulation. Vertical Bunsen burner experiment revealed that the addition of ZB and APP led to a zero dripping flame system, whereas such a phenomenon was absent in both the control and NF composites loaded with ATH. The bomb calorimeter results revealed that addition of NF into neat epoxy significantly enhanced the FR behavior of the composite, and the gross heat of combustion was greatly reduced when FRs were incorporated into the control sample.

Results from the current study concluded that non-halogenated FRs including APP, ZB and ATH were able to enhance the fire retardancy of EFB epoxy composite without significantly deteriorate the mechanical behaviors.

It can be shown from scanning electron microscopy micrographs that the fabrication technique produced composites with good interfacial adhesion between NF and epoxy matrix, and homogenous distribution of FRs were achieved.

The purpose of this paper is to develop strategies for potential environmental impacts as a result of institutional arrangement and development of oil palm downstream industry both regionally and nationally.

The research location is in the areas potential for oil palm plantation development, either by plasma through BUMN and BUMS or self-supporting by the society. The research location will be divided into two parts, namely, the land area and the coastal area. The Riau land areas are Regency of Kampar, Rokan Hulu, and Kuantan Singingi, while Riau coastal areas are Regency of Pelalawan, Siak, Bengkalis, Indragiri Hilir, Indragiri Hulu and Rokan Hilir. Both research areas have different productivity due to the different soil fertility levels. The sustainability level of oil palm plantation from the socio-economic and environmental aspects is analyzed using the multi-dimensional scaling approach modified into Rapid Appraisal-Index Sustainability of Palm Oil Management.

In Riau Province, the development of oil palm is quite rapid. This is reasonable for several reasons which include the following supporting factors: the geographical condition of the Riau region is very supportive; the high demand for palm oil derivative products; the existence of market guarantee for oil palm farmers; the higher income oil palm generates than other plantation crops; and the relatively flat area. Most of the problems faced by oil palm farmers are the use of less good seeds, the length of the fruit laying at the location of the plantation, the inadequate production road, the relatively far distance to palm oil mill (POM) (National Agency of Drug and Food Control), the tendency of determining the unilateral revenue of the POM, the collectively measurement of revenue and the general revenue information. The development of oil palm plantations has created an entrepreneurial capability for farmers who are able to capture business opportunities in the agricultural sector, especially the plantation sub-sector.

The originality of this paper shows the comprehensively control strategy, potential of environmental impact and palm oil plantation. The method used for data collection was rapid rural appraisal method because accurate information is needed in a limited time as it relates to decisions related to village development that must be taken immediately. The study area was conducted in Riau Province because Riau Province is one of the biggest palm oil producers in Indonesia. The study sites will be divided into two, namely, the land area and the coastal area.

This paper aims to analyze sustainability level of crispy palm tankos mushroom business; institutions involved in the development of crispy palm tankos mushroom business in Riau Region; nutritional composition, sensory assessment both descriptively and hedonically, and also designing the suitable and hygienic packaging for crispy palm tankos mushroom in Riau; institutional structuring model involved in the development of crispy palm tankos mushroom business in Riau; and strategies to improve the quality of crispy palm tankos mushroom in Riau.

This study is quantitative research conducted by survey. The research was conducted in Indragiri Hulu, Pelalawan, Kampar and Siak, Riau Province, Indonesia from April to August 2017. The study population is all producers producing crispy oil palm mushroom in the research area. The sample was determined purposively with the criterion of the producers who have been running their business for at least 5 years. Based on the criterion, there were 225 producers included as the sample.

This study found that business sustainability is the main concern of micro business of crispy palm tankos mushroom in Riau Province. Although local government lack of support, the average value of business sustainability is in the very high category. In addition due to the excellent business support quality, business sustainability is supported by the family environment, independence and business progress. There are two institutions involved in the development of makers business to date, they are informal financial institutions that help makers to increase business capital, and retailers who help makers deliver products to consumers. The results of nutritional composition analysis of crispy palm tankos mushroom showed that the crispy tankos mushroom is a product with good nutrition value for consumption by the community. The implication of this study is to improve the quality of the tankos mushroom crispy palm in terms of color according to the choice of the panelists.

Originality of this study aims to provide strategic formulation to use local resources and improve the economic actors of the home industry of crispy palm tankos mushroom processing in Riau. This research is conducting a structure to the institutions involved in the development of crispy palm tankos mushroom and improving the product quality. This research contributes to the development of science, especially economic development, particularly the development of small industries.

This is a case study about the green agenda of Urban Hijau, a social enterprise which promotes urban farming as a way to a foster sustainability. It narrates how it started and progressed through the introduction of various sustainable farming systems. The landscape of farming with its opportunities and challenges such as embracing permaculture as a farming philosophy, and food security are presented. The case ends with questions which Urban Hijau has to address in order to sustain its social enterprise. Can a small urban farm contribute significantly to the food industry? If so, how? Is Urban Hijau on the right track?