Items where Author is "Helard, Denny"

Article

Indah, Shinta and Helard, Denny and Hudawaty, Fathilla (2019) Column Study of Aluminum Adsorption from Groundwater by Natural Pumice. International Journal on Advanced Science, Engineering and Information Technology, 9 (5). pp. 1600-1604. ISSN 2088-5334

Indah, Shinta and Helard, Denny and Hudawaty, Fathilla (2019) Column Study of Aluminum Adsorption from Groundwater by Natural Pumice. International Journal on Advanced Science, Engineering and Information Technology, 9 (5). pp. 1600-1604. ISSN 2088-5334

Indah, Shinta and Helard, Denny and Binuwara, Amelisa (2018) Studies on desorption and regeneration of natural pumice for iron removal from aqueous solution. Water Science and Technology, 2017 (2). pp. 509-515. ISSN 0273-1223

Indah, Shinta and Helard, Denny and Herfi, Marjani Amajida and Hamid, Hukama (2018) Spatial Variation of Metals in the Batang Arau River, West Sumatera, Indonesia. Water Environment Research, 90 (3). pp. 234-243. ISSN 1554-7531

Indah, Shinta and Helard, Denny and Sasmita, Astri (2016) Utilization of maize husk (Zea mays L.) as low-cost adsorbent in removal of iron from aqueous solution. Water Science and Technology, 73 (12). pp. 2929-2935. ISSN 0273-1223

Helard, Denny and Indah, Shinta and Setiawan, Benny Analisis Variasi Spasial Kandungan Logam Besi (Fe), Mangan (Mn) dan Kobalt (Co) di Sedimen Sungai Batang Arau Padang, Sumatera Barat. Prosiding Seminar Nasional Teknologi Lingkungan XII – Institut Teknologi Sepuluh Nopember Surabaya. ISSN ISBN 978-602-73103-0-8

Indah, Shinta and Helard, Denny and Vandira, Tika Analisis Variasi Spasial Kandungan Minyak dan Lemak serta Deterjen (Sebagai MBAS) di Sungai Batang Arau Padang, Sumatera Barat. Prosiding Seminar Nasional Teknologi Lingkungan XII – Institut Teknologi Sepuluh Nopember Surabaya. ISSN ISBN 978-602-73103-0-8

Helard, Denny and Indah, Shinta and Ardon, Afdilla Analysis of spatial variation of phosphates in Batang Arau River, Indonesia. MATEC Web of Conferences.

Indah, Shinta and Helard, Denny Evaluation of iron and manganese-coated pumice from Sungai Pasak, West Sumatera, Indonesia for the removal of Fe(II) dan Mn(II) from aqueous solutions. Procedia Environmental Sciences.

Indah, Shinta and Helard, Denny and Primasari, Budhi and Edwin, Tivani and Putra, Riyan Modification of natural pumice by physical and chemical treatments for removal of zinc ions from aqueous solution. MATEC Web of Conferences.

Helard, Denny and Amelia, Diana PENYISIHAN AMONIA, NITRIT DAN NITRAT DARI LIMBAH CAIR HOTEL DENGAN METODE MULTI SOIL LAYERING (MSL) (STUDI KASUS: LIMBAH HOTEL PANGERAN BEACH, PADANG). Artikel Ilmiah Penelitian Dosen Muda.

Helard, Denny and Indah, Shinta and Dhea, Kiflia Removal of nitrate from groundwater by column using pumice as adsorbent as an effort for water resources conservation. IOP Conference Series: Materials Science and Engineering, 846. pp. 1-7.

Indah, Shinta and Helard, Denny and Lusiani, Gusti and Hapsari, Diana Removal of nitrate using modified pumice as adsorbent for reducing groundwater pollution. E3S Web of Conferences.

Helard, Denny and Indah, Shinta and Wilandari, Mutia Spatial distribution of coliform bacteria in Batang Arau River, Padang, West Sumatera, Indonesia. IOP Conference Series: Materials Science and Engineering, 602 (012062). pp. 1-9.

Indah, Shinta and Helard, Denny and Edwin, Tivany and Pratiwi, Rahmi Utilization of Pumice from Sungai Pasak, West Sumatera, Indonesia as Low-Cost Adsorbent in Removal of Manganese from Aqueous Solution. AIP Conference Proceedings.

Monograph

Helard, Denny and Komala, Puti Sri (2014) IDENTIFIKASI MIKRO ORGANISME ANAEROB DOMINAN PADA SISTEM MULTI SOIL LAYERING (MSL) DAN PERANANNYA DALAM PENGOLAHAN LIMBAH CAIR PABRIK KARET. Working Paper. Fakultas Teknik. (Unpublished)

Helard, Denny and Komala, Puti Sri (2014) IDENTIFIKASI MIKROBA ANAEROB DOMINAN PADA PENGOLAHAN LIMBAH CAIR PABRIK KARET DENGAN SISTEM MULTI SOIL LAYERING (MSL). Working Paper. Fakultas Teknik. (Unpublished)

ndah, Shinta I and Helard, Denny (2014) STUDI KUALITAS AIR TANAH DI KAWASAN MUARA SUNGAI BATANG ARAU, PADANG. Working Paper. Fakultas Teknik. (Unpublished)

Helard, Denny and Komala, Puti Sri and Susilawati, Susilawati (2010) STUDI TIMBULAN DAN KOMPOSISI SAMPAH KOTA LUBUKSIKAPING STUDY OF SOLID WASTE GENERATION AND COMPOSITION IN LUBUKSIKAPING CITY. Working Paper. Fakultas Teknik. (Unpublished)

Patent

Shinta Indah, Denny Helard, Tivany Edwin (2021) Unit Peralatan Adsorpsi Air Tanah dengan Adsorben Batu Apung. IDS000003937.