Founded in 1947, Alserkal Group is one of the largest UAE family businesses. The diverse portfolio of the Groupâs services includes environmental solutions such as waste and water management, property development, tourism, transportation services, facilities management, investment, and cultural initiatives. The company operates in the UAE, Oman, Bahrain, and Qatar, employing over 800 people. Alserkal Group has been involved in supporting sustainability in the UAE and the region since the 1990s. Even though the companyâs strategy is not explicitly mapped to specific Sustainable Development Goals (SDGs), the business processes are well aligned with the two critical SDGs for the UAE â SDG 6 (clean water and sanitation) and SDG 12 (sustainable consumption and production). One of Alserkal Groupâs core businesses is developing solutions to ensure clean water and sanitation in the commercial and residential areas of the food producing industries. In 1993, Alserkal Group setup the first grease trap in the UAE to enable collection of fats, oils, and grease (FOG) from kitchen wastewaters. Apart from the benefits of water reuse, the grease trap solution helps protect against risks to public health which can be caused when sewer overflows contaminate the environment. The reason for such outflows is typically related to pipe blockages when uncollected FOG solidifies. Alserkal Group has been driving clean water initiatives in other Emirates as well. The Group is currently working on deploying a smart-city solution to help regulate the market of grease traps.
In addition to cleaning water which has already been contaminated, Alserkal Groupâs company Coregreen collects used cooking oil (UCO) before it has been disposed into the water, thus contributing to SDG 12. UCO can cause public health issues if it is reused for cooking. Since 2000, Alserkal Group has been authorized by Dubai Municipality to collect UCO and ensure it gets properly recycled into bio-diesel. In 2018, the Group signed a contract with Tadweer, the Center of Waste Management of Abu Dhabi, to commission the biggest facility for converting UCO into bio-diesel. The plant is expected to be completed by end-2019. In 2009, Alserkalâs company Blue, in partnership with Dubai Municipality, commissioned Envirol, the first grease trap waste recycling plant in the MENA region, to enable the effective disposal of grease trap waste and UCO. During the second phase of the plantâs deployment in 2018, its capacity was doubled from 50,000 to 100,000 gallons per day. From 2009 to 2019, the plant recycled more than 90 million gallons of kitchen waste into soap and bio-diesel. Through Envirol, Alserkal and Dubai Municipality ran the Best Kitchen Award campaign to increase awareness of food establishments on the FOG waste problem.
Sample Solution
least as early as the 1940âs as a way for isolation of purified analytical samples of synthetic polymers , nanoprecipitation regained a heightened level of patent interest in the 1950âs and 60âs this time as a cost effective method for purifying synthetic polyolefins [142]. In the late 80âs and early 90âs, Fessi et al.,1989 [143] patented the nanoprecipitation method as a procedure for the preparation of eligible colloidal systems of a polymeric substance in the form of nanoparticles [143]. Nanoprecipitation is also called solvent displacement method or interfacial precipitation method [143-148] .It depends on the precipitation of a preformed polymer from an organic solution and the diffusion of the organic solvent in the aqueous phase either in the presence or absence of a surfactant [143, 149-151]. The main principle of this technique is based on the interfacial deposition of a polymer after displacement of a semi polar solvent, miscible with water, from a lipophilic solution. Rapid diffusion of the solvent into non-solvent phase results in the decrease of interfacial tension between the two phases, which increases the surface area and causes the formation of small droplets of organic solvent [143, 152]. Nanoprecipitation system composed of three basic components: the polymer (synthetic, semi synthetic or natural), the polymer solvent and the non-solvent of the polymer. Organic solvent (i.e., Ethanol, acetone, hexane, methylene chloride or dioxane) which is miscible in water and can be easily removed by evaporation is chosen as polymer solvent. Because of this reason, acetone is considered to be the most commonly used polymer solvent in this method [143,153, 154]. Sometimes, it consists of binary solvent blends, acetone with small volume of water [155], blends of acetone with ethanol [156-158] and methanol [159]. The polymers commonly used are biodegradable polyesters, especially poly (Æ-caprolactone) (PCL) [160-164], polylactide (PLA) [165, 166] and poly (lactide-co-glycolide) (PLGA) [167, 168]. Eudragit [156] can also be used as many other polymers such as polyalkylcyanoacrylate (PACA) [169-171]. Natural polymers such as allylic starch [172], dextran ester [173], were also used ,though synthetic polymers have higher purity and better reproducibility than natural polymers [174]. On the other hand, some polymers are PEG copolymerized in order to decrease nanoparticle recognition by the reticular endothelial system [159].>
least as early as the 1940âs as a way for isolation of purified analytical samples of synthetic polymers , nanoprecipitation regained a heightened level of patent interest in the 1950âs and 60âs this time as a cost effective method for purifying synthetic polyolefins [142]. In the late 80âs and early 90âs, Fessi et al.,1989 [143] patented the nanoprecipitation method as a procedure for the preparation of eligible colloidal systems of a polymeric substance in the form of nanoparticles [143]. Nanoprecipitation is also called solvent displacement method or interfacial precipitation method [143-148] .It depends on the precipitation of a preformed polymer from an organic solution and the diffusion of the organic solvent in the aqueous phase either in the presence or absence of a surfactant [143, 149-151]. The main principle of this technique is based on the interfacial deposition of a polymer after displacement of a semi polar solvent, miscible with water, from a lipophilic solution. Rapid diffusion of the solvent into non-solvent phase results in the decrease of interfacial tension between the two phases, which increases the surface area and causes the formation of small droplets of organic solvent [143, 152]. Nanoprecipitation system composed of three basic components: the polymer (synthetic, semi synthetic or natural), the polymer solvent and the non-solvent of the polymer. Organic solvent (i.e., Ethanol, acetone, hexane, methylene chloride or dioxane) which is miscible in water and can be easily removed by evaporation is chosen as polymer solvent. Because of this reason, acetone is considered to be the most commonly used polymer solvent in this method [143,153, 154]. Sometimes, it consists of binary solvent blends, acetone with small volume of water [155], blends of acetone with ethanol [156-158] and methanol [159]. The polymers commonly used are biodegradable polyesters, especially poly (Æ-caprolactone) (PCL) [160-164], polylactide (PLA) [165, 166] and poly (lactide-co-glycolide) (PLGA) [167, 168]. Eudragit [156] can also be used as many other polymers such as polyalkylcyanoacrylate (PACA) [169-171]. Natural polymers such as allylic starch [172], dextran ester [173], were also used ,though synthetic polymers have higher purity and better reproducibility than natural polymers [174]. On the other hand, some polymers are PEG copolymerized in order to decrease nanoparticle recognition by the reticular endothelial system [159].>
