Estimating The Ability of Lanceleaf Arrowhead (Sagittaria lancifolia ) in Phytoremediation of Heavy Metal Copper (Cu)

One of Indonesia's strategies to improve the quality of its economy as a developing country is to boost industrial activity. However, the existence of industry has a detrimental consequence, one of which is heavy metal copper pollution (Cu). Phytoremediation is one of the ecologically acceptable pollutant treatment methods. Phytoremediation approaches using Sagittaria lancifolia plants are thought to be capable of overcoming heavy metal Cu contamination in the environment. This research is a preliminary study into the limitations of the Sagittaria lancifolia plant's capacity to absorb heavy metal Cu. This study employed an experimental technique, which was carried out between March 26 and April 7, 2021, in the Purwodadi Botanic Garden's Greenhouse, with four concentration variations, namely 0 mg/L, 1 mg/L, 3 mg/L, and 5 mg/L. According to the result of this research, the plant Sagittaria lancifolia may remediate heavy metal Cu at a maximum concentration of 5 mg/L. This is due to the fact that at this concentration, the Sagittaria lancifolia plant presents indications of death, particularly severe chlorosis and necrosis.

Plant Nutrient Uptake in Full-Scale Floating Treatment Wetlands in a Florida Stormwater Pond: 2016–2020

Nutrient enrichment of surface waters degrades water quality. Municipalities need effective and economical solutions to remove nutrients from surface waters. From July 2016 to May 2020, full-scale (900 m2, 5% cover) floating treatment wetlands (FTWs) were deployed in Wickham Park pond, a eutrophic water body (0.13 mg/L total phosphorus (P), 0.96 mg/L total nitrogen (N)). The plants in FTWs in close proximity to a SB10000 mixer fixed N and P more efficiently. The rate of N (g/m2/year) fixed within tissues was highest for Juncus effusus (13.5), Agrostis alba (13.2), and Sagittaria lancifolia (12.1). The rate of P (g/m2/year) fixed within plant tissues was similar for all species (3.77, Agrostis alba, Canna spp., Iris hexagona, Juncus effusus, and Sagittaria lancifolia) save Pontederia cordata (2.52) volunteer species (1.41). The N and P removed with plant harvest were similar for non-mixed and mixed FTWs. Notably, the N:P ratio in plant tissues in 2017 (pre-mixer installation) was 11:1; after mixer installation (2018–2020), N:P ratios averaged 2.7:1, indicating increased P fixation within plant tissues. In 2017, 12,828 kg of plant tissues was harvested, removing 334 kg of N and 29.5 kg of P. In 2019, 32,958 kg of plant biomass was harvested from the pond, removing 425 kg of N and 138 kg of P. In 2020, 27,945 kg of biomass was harvested from FTWs, removing 267 kg of N and 95 kg of P. From 2016 to 2020, 73,000 kg of biomass was harvested, removing 1026 kg of N and 262 kg of P from Wickham Park pond. Knowing the total fresh biomass of tissues removed from FTWs at harvest is critical for accuracy in reporting nutrient removal aided by FTWs.

Identifikasi Biodiversitas Tumbuhan Pada Lingkungan Akuatik di Sungai Kabupaten Jepara

<p>ABSTRAK<br />Penelitian ini bertujuan untuk mengidentifikasi biodiversitas tumbuhan pada lingkungan akuatik sungai di Kabupaten Jepara. Peneliti menggunakan metode deskriptif kualitatif dengan mengambil sampel empat plot stasiun penelitian secara purposive pada Sungai Batukali, Sungai Gerdu, Sungai Karang Aji dan Sungai Kedung Kabupaten Jepara. Pengumpulan data dilakukan dengan observasi, dokumentasi, identifikasi dan inventarisasi data kemudian dilakukan triangulasi sumber data untuk melakukan validasi dan analisis data lanjutan. Hasil penelitian mengungkap adanya biodiversitas tumbuhan air yang ditemukan disepanjang Daerah Aliran Sungai seperti Eichornia crassipes (eceng gondok), Nymphaea alba (teratai), Hydrilla verticillata (ganggeng), Ipomoea aquatic (kangkung), Nelumbo nucifera (seroja/lotus), Salvinia molesta (kiambang), Monochoria hastata (eceng), Echinodorus radicans (melati air), Sagittaria lancifolia (daun tombak). Dari tumbuhan akuatik yang ditemukan tersebut terdapat tumbuhan yang mendominasi pada stasiun tempat penelitian yaitu tumbuhan Eichornia crassipes dan Hydrilla verticillata.</p><p> </p>

Tumbuhan Echinodorus Radicans Dan Sagittaria Lancifolia Sebagai Fitoremediator Detergen Dan Logam Berat

Indonesia is a tropical country that wellknow as mega-biodiversity, but a small diversity is known and utilized. The predicate as mega biodiversity country, now augmented with predicate as hot spot country, a term that high levels of forest destruction and loss biodiversity. Others high development efforts that ignore of environmental aspects, improving the quality and quantity of various types of pollutants, which directly or indirectly will affect the environment. Water pollutants came from, agricultural and industrial wastewater domestic that polluted rivers. While the condition of waste water is still directly discharged into the drainage channel that will lead to water bodies without processing. The concept of using plants as natural technologies framework to solve environmental problems are known as phytotechnology. One of phytotechnology application is phytoremediation. Phytoremediation is used of plants process in restoring environmental quality from pollutants that contaminate environmental. Given the potential of aquatic plants as phytoremediators, the effort to conserve the aquatic plants diversity in Purwodadi Botanic Garden (PBG) is very important. Therefore, research related to phytoremediation using aquatic plants needs to be done. This study aims to determine the ability of aquatic plants Echinodorus radicans and Sagittaria lancifolia in phytoremediation of organic wastewaste (detergent) and inorganic wastewaste (heavy metals). This research is descriptive with observation and experimental, based on literature study, observation on aquatic plants collection and green house experiment at PBG, and laboratory analysis in Universitas of Brawijaya. Aquatic plants from PBG are Echinodorus radicans and Sagittaria lancifolia based on previous studies are known to have potential in wastewater treatment, not only form river quality but also used in household treatment, leachate, water treatment plant installation, industrial leather waste, slaughterhouses, tofu industry, even hospital wastewater. While the test results of heavy metal content such as Cd, Cr, Cu, Hg and Pb is known to exist and accumulated in plant leaf tissue in fields. Also evidenced by results of morphological and experimental observations in PBG greenhouses using both species, has demonstrated its ability in phytoremediation against organic contaminants and heavy metal. Keywords: Phytoremediation, Echinodorus radicans, Sagittaria lancifolia, Wastewater.

Composición florística y diversidad de la vegetación de humedales en los lagos interdunarios de Veracruz

Dune lakes of the coast of Veracruz, Mexico, are shallow freshwater lakes with suitable conditions for the establishment of herbaceous and arboreal wetlands. Most of the vegetation of the surrounding dunes has been transformed into pastures for grazing lands and sugar cane plantations. The objective of this paper is to describe and compare structure, composition and diversity of the wetland vegetation of 15 dune lakes in the rural area. Environmental parameters (pH, salinity, size, depth and number of dry months) were taken into account. Plant diversity of these lakes comprise 46 families (27 strictly aquatic) and 82 species, among them <em>Sagittaria lancifolia, Pontederia sagittata, Ceratophyllum demersum.</em> Species richness fl uctuated between 5 and 33 species. The classifi cation resulted in nine fl oristic wetland groups, three of them with grass species from the surrounding areas <em>(Cynodon dactylon, Echinochloa pyramidalis).</em> Ordination separated lakes based on pH and number of dry months. Management plans should be developed together with the owners to maintain both the use of these lakes and the composition and structure of their wetlands.