The aim of this research was to improve the quality of liquid waste water by looked at the role of test plants (warter hyacinth, water jasmine and apu wood)by phytoremediation process in reducing pollutant level. This research was conducted at Rumah Kaca Faculty of Agriculture University of Sumatera Utara Medan from July 2016 to April 2017.This research was used factorial randomized block design with two factors. The first factor was tofu waste with three levels; L0 (no waste) as control , L1(25%) and L2 (50%). The second factor was plant species with four levels were T0 (no plant as control), T1 (water hyacinth), T2 (jasmine water) and T3 (apu wood). The parameters observed were BOD (mg / L), COD (mg / L), TSS (mg / L), NH3N (mg / L), pH, waste colours, odor waste and dry weight of plans (grams).The results showed that the three test plants could be used for phytoremediation process, tofu waste, 25% waste concentration as the best apu wood in reducing the pollutant level of tofu waste.Keywords: tofu liquid waste, aquatic plants, phytoremediation, contaminants
Bintaro is a mangrove plant that grows on the coast and is often used as a shade tree in megacities. The toxic content of the Bintaro plant is found in all parts of the plant. The toxic content of cardiac glycoside compounds contained in the Bintaro plant can be used as a rat repellent. Rat pests are important pests in crops, especially in rice plants which are difficult to control in mechanically and chemically, thus rice production always decreases. Therefore, it is necessary to search for effective, efficient, and environmentalfriendly control technology, namely by using fruit extracts. The plant-based rodenticides made from Bintaro fruit extracts are effective for overcoming rat pests. The purpose of the study was to determine the qualitative levels of primary and secondary metabolites from Bintaro plants which act as antifeedants for rat pests (Ratus argiventer). The method used in this research was qualitative testing using phenol method to test the content of primary and secondary metabolites in the leaves and stems of Bintaro plants. From the results of the research conducted, it was found that the qualitative levels of primary metabolites from Bintaro leaves and stems contained protein content. Fat and carbohydrate content of secondary metabolites found in the stems and leaves of the Bintaro plants were Alkaloids, Saponins, Flavonoids and Polyphenols in Bintaro leaves and on its stems contained Flavonoids, Saponins, Tannins and alkaloids.
Abstract Bintaro is a plant that contains poison in all parts of the plant. Cardiac glycoside compounds contained in Bintaro plants can be used as biopesticides to repel rats. Rat pests are one of the important pests in rice plants that are difficult to control, so rice production always decreases. Therefore it is necessary to look for an effective, efficient and environmentally friendly control technology, namely by using Bintaro plant extracts which are able to become biopesticides to repel rat pests. The purpose of this study was to determine the primary compound of the Bintaro plant (CarberaodollamGaertn) which acts as a repellent for thepest Ratusargiventer. The method used in this research is qualitative testing using phenol method to test the content of primary metabolites in the leaves and stems of Bintaro plants. From the results of the research conducted, it was found that the qualitative levels of primary metabolites from Bintaro leaves and stems contained protein content. Fat and carbohydrate content.
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