Analisis kandungan Timbal (Pb) dan Kadmium (Cd) dalam kangkung air (Ipomoea aquatica Forks.) di rawa yang dialiri limbah cair rumah tangga

Penelitian ini bertujuan untuk menentukan kandungan timbal (Pb) dan kadmium (Cd) dalam tanaman kangkung air (Ipomoea aquatica Forks.) di rawa yang dialiri limbah cair rumah tangga. Jenis penelitian ini adalah penelitian observasional dilakukan dengan pendekatan deskriptif melalui uji logam berat di laboratorium. Hasil penelitian menunjukkan bagian tanaman yang mengakumulasi logam berat paling tinggi adalah bagian akar, lalu batang, sedangkan daun tidak terkandung logam. Organ akar mengandung logam Pb sebesar 0,0146 mg/kg dan logam Cd sebesar 0,0018 mg/kg. Bagian organ batang mengandung timbal sebesar 0,0012 mg/kg dan logam Cd sebesar 0,000867 mg/kg. Semuanya masih di bawah batas maksimum cemaran logam untuk bahan pangan sehingga masih aman untuk dikonsumsi masyarakat.

The Use of Phytoremediaton with an Up-flow System to Reduce Pollutants at Anaerobic Pond Outlets II Palm Oil Mill Effluent (Elaeis guineensis Jacq.)

<p>Palm oil plantations are one of the commodity crops that have an important role in the economy in Indonesia, namely as an export commodity that generates foreign exchange in addition to oil and gas. The increase in world demand for the palm oil commodity encourages the growth of the palm oil industry so that the estimate of liquid waste also increases. If the liquid waste is disposed of directly into the water without proper management, it will have a negative impact on the surrounding aquatic environment. This study aims to find the best phytoremedian in reducing the pollutants of WWTP II anaerobic ponds in the palm oil mill industry and to get the reduction. Research activities took place from July 2020 to September 2020 in the field and Analysis Laboratory of the Lampung State Polytechnic. This study uses an up-flow system with a stagnant condition and is carried out on a laboratory scale by testing using descriptive methods. The phytoremedian used in this study were water nails (<em>Azolla pinnata</em>) (A1), water spinach (<em>Ipomoea aquatica</em>) (A2), cattail (<em>Typha angustifolia</em>) (A3) and water bamboo (<em>Equisetum hyemale</em>) (A4). The results showed that the best phytoremedian in reducing the observation variable of palm oil mill effluent outlet anaerobic pond II was water spinach (<em>Ipomoea aquatica</em>). Phytoremedian <em>Ipomoea aquatica</em> at the end of the treatment was able to reduce the COD value with a decrease in percentage of 41.29%, increase the pH to 8.57, reduce the TSS value to 124 mg/L, the turbidity value to 21 mg/L, the total N value to 0.021 mg/L, the K value becomes 2.59 mg/L.</p>

PKM Introduksi Sediaan Konsentrat Hijauan Rawa Sebagai Sumber Protein Itik Alabio

Duck feed ingredients are currently still expensive and less affordable for breeders, it is necessary to have alternative quality feed ingredients originating from potential superior swamp plants. The activity aims to provide concentrate preparations from swamp forage as feed ingredients for ducks to reduce feed prices, improve ration quality and income (IOFC) for laying ducks. The activity partner is the Keraton duck group in the Martapura sub-district, Banjar Regency. The activity lasts months. The results of this activity are identification of superior forage originating from swamps that have the potential to be used as feed for laying ducks including Kayapu (Azolla pinnata, aquatic algae (Azolla microphylla, duckweed (Lemna minor), water spinach (Ipomoea aquatica Forsk), water hyacinth (Eichhornia crassipes), water hyacinth (Eichhornia crassipes), taro leaves (Colocasia esculenta L.), genjer (Limnocharis flava), kiambang (Salvinia molesta ) and antanan (Centella asiatica (L.) Urban).There are only four forage concentrates that have a nutrient content of more than 20%, namely kayapu , aquatic algae (azolla microphylla), duckweed (Lemna minor) and water spinach (Ipomoea aquatica Forsk), until they are packaged as swamp forage concentrate products .Feeding trial application of alternative feed ingredients, 30% swamp forage concentrate in duck rations can improve the quality of the main duck ration protein (PK), which resulted in an increase in the number of egg production and the percentage of egg production from 67% to 69.3%, as well as a decrease in ration prices from the price before the activity is IDR 5,630/kg to IDR 4,035/kg after the activity. Feed conversion (FCR) was improved from FCR 6.0 improved to 4.6, egg yolk color increased from 8-9 to 10-11, and IOFC increased from Rp 5.8 million/month to Rp 6.3 million/month. The conclusion shows that the activity of making concentrate preparations is very helpful for farmers increase business profits. Keywords: egg production, forage concentrate, iofc, ration price, swamp forage Abstrak Bahan pakan itik saat ini masih mahal dan kurang terjangkau peternak, perlu alternatif bahan pakan yang berkualitas asal tanaman potensial unggulan rawa. Kegiatan bertujuan untuk menyediaan sediaan konsentrat asal hijauan rawa sebagai bahan pakan itik untuk menurunkan harga pakan, memperbaiki kualitas ransum dan pendapatan (IOFC) usaha itik petelur. Mitra kegiatan adalah kelompok itik Keraton di kecamatan martapura Kabupaten Banjar. Kegiatan berlangsung dua bulan. Hasil pelaksanaan kegiatan adalah Identifikasi hijauan unggulan asal rawa yang potensial sebagai pakan itik petelur ada sembilan meliputi kayapu (azolla pinnata, ganggang air (azolla microphylla, duckweed (Lemna minor), kangkung air (Ipomoea aquatica Forsk), eceng gondok (Eichhornia crassipes), daun talas (Colocasia esculenta L.), genjer (Limnocharis flava), kiambang (Salvinia molesta ) dan antanan (Centella asiatica (L.) Urban). Pembuatan konsentrat hijauan hanya ada empat hijauan rawa yang memiliki kadar nutrisi di atas 20% yaitu kayapu, ganggang air (azolla microphylla), duckweed (Lemna minor) dan kangkung air (Ipomoea aquatica Forsk), hingga dikemas sebagai produk konsentrat hijauan rawa. Feeding trial penerapan bahan pakan alternatif konsentrat hijauan rawa 30% dalam ransum itik mampu memperbaiki kualitas ransum itik utamanya protein (PK), yang berdampak pada peningkatan jumlah produksi telur dan prosentase produksi telur dari 67% menjadi 69,3%, serta penurunan harga ransum dari harga sebelum kegiatan sebesar Rp 5.630/kg menjadi Rp 4.035/kg setelah kegiatan. Konversi pakan (FCR) diperbaiki dari FCR 6,0 membaik menjadi 4,6, warna kuning telur meningkat dari 8-9 menjadi 10-11, dan IOFC naik dari Rp 5,8 juta/bln menjadi Rp 6,3 juta/bln. Kesimpulan menunjukkan kegiatan pembuatan sediaan konsentrat sangat membantu peternak meningkatkan keuntungan usaha itik petelur. Kata kunci: harga ransum, hijauan rawa, iofc, konsentrat hijauan, produksi telur

The use of water spinach plants (Ipomoea aquatica Forsk.) for phytoremediation of hospital waste

Water spinach (Ipomoea aquatica Forsk.) has the ability to accumulate pollutants so that it can be useful for wastewater treatment processes. The purpose of this study was to determine the phytoremediation technique in hospital wastewater using kale in improving the quality of hospital wastewater and to determine the level of accumulation of Pb and Cr metals in plants. The study used a completely randomized design with four treatments, namely treatment 0 days (without treatment), 2 days, 4 days and 6 days. Parameters include the physical and chemical quality of the waste as well as the content of Pb and Cr in the waste and plants. To determine the effect of phytoremediation on the quality of household waste and metal content, ANOVA analysis and further testing with the BNT test level of 5% were used. Phytoremediation with kale was able to reduce the temperature of the waste on the 4th day of treatment and dissolved oxygen on the 4th treatment and increase the pH. The accumulation of Pb and Cr on each day is different. The highest accumulation of Pb and Cr occurred on day 6, namely 0.1587 mg/L for Pb metal and 0.2167 mg/L for Cr metal. Kale plants are very possible to be used in the phytoremediation process.

KOMPETISI TANAMAN KANGKUNG (Ipomoea aquatica) DENGAN GULMA SEMBUNG RAMBAT (Mikania micrantha H.B.K.)

Abstrak Sembung rambat merupakan tanaman introduksi yang memiliki daya invasi tinggi, sehingga menjadi gulma di pertanaman kangkung. Penelitian ini bertujuan untuk melihat pengaruh kompetisi antara gulma sembung rambat dengan tanaman kangkung. Menggunakan metode penelitian eksperimen dengan Rancangan Acak Lengkap 5x5. Perlakuan yang diberikan adalah (A) Kangkung, (B) Kangkung + 1 Sembung rambat, (C) Kangkung + 2 Sembung rambat, (D) Kangkung + 3 Sembung rambat, (E) Kangkung + 4 Sembung rambat. Bila perlakuan mempengaruhi hasil kangkung, analisis dilanjutkan dengan uji lanjut Duncan New Multiple Range Test (DNMRT) pada taraf 5%. Hasil menunjukan keberadaan sembung rambat di pertanaman kangkung darat dapat menurunkan tinggi, jumlah daun, diameter batang dan bobot kering kangkung. Penurunan semakain besar dengan bertambahnya jumlah sembung rambat pada pertanaman akibat terjadinya kompetisi terhadap faktor lingkungan yang sama. Dari penelitian dapat disimpulkan bahwa sembung rambat yang berada di pertanaman kangkung merupakan gulma yang dapat menurunkan hasil panen dan keberadaannya dipertanaman harus dikendalikan.