Vanandi, Gibran Aslam Sri and Dr. Ir. Putu Hadi Setyarini, ST., MT and Francisca Gayuh Utami Dewi, ST., MT. (2024) Pengaruh Konsentrasi HCl dan Suhu Pemanasan Pada Proses Reaktivasi Limbah Karbon Aktif Bambu. Sarjana thesis, Universitas Brawijaya.
Abstract
Karbon aktif bambu yang telah digunakan sebagai penjernih suatu limbah tidak dapat digunakan secara langsung sebagai adsorbat karena banyaknya zat pengotor yang telah menempel pada karbon aktif bambu tersebut sehingga pori pori karbon aktif bambu tertutup oleh zat pengotor lainnya, kemampuannya dalam menyerap zat pengotor semakin berkurang. Terdapat cara untuk mengembalikan fungsi karbon aktif bambu yang telah tercemar sebagai absorden sehingga karbon aktif bambu yang telah tercemar dapat digunakan kembali. Metode ini dinamakan proses reaktivasi karbon aktif yang merupakan proses mendaur ulang karbon aktif tercemar. Beberapa proses reaktivasi karbon aktif bambu dilakukan dengan dua metode diantaranya acid washing dan reaktivasi termal. Dengan metode ini, dapat mengurangi pencemaran limbah baik zat pengotor maupun limbah karbon aktif. Proses reaktivasi karbon aktif bambu dilakukan dengan menyiapkan karbon aktif bambu yang sudah menjadi adsorben zat pengotor dalam keadaan basah maupun kering. Pada karbon aktif bambu yang basah, terlebih dahulu dikeringakan pada electric oven dengan suhu ±105℃ dan waktu ±90 menit. Setelah karbon aktif bambu dalam keadaan kering semua, proses pertama yang dilakukan yaitu perlakuan acid washing menggunakan asam HCl dengan dua konsentrasi asam sebesar 20% dan 30% yang dilakukan dengan cara memasukkan karbon aktif bambu pada masing masing gelas breaker yang berisi larutan asam HCl konsentrasi sebesar 20% dan 30% dengan diaduk selama 30 menit pada suhu ruangan, setelah selesai pengadukan mencampurkan larutan NaOH 1% untuk menghilangkan kandungan asam HCl pada karbon aktif bambu. Untuk tahap akhir dari perlakuan acid washing dilakukan dengan memisahkan antara larutan dengan karbon aktif menggunakan kertas saring serta melakukan pengeringan karbon aktif dengan suhu +105℃ selama ±90. Proses kedua memberi perlakuan reaktivasi termal dengan cara memanaskan karbon aktif bambu pada suhu 750 ℃, 850℃, 950℃ selama 60 menit. Setelah itu, dilakukan beberapa pengujian diantaranya pengujian Brunuer Emmett Teller (BET), Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS) dan Fourier Transform Infrared (FTIR). Hasil dari penelitian ini menunjukkan bahwa semakin besar konsentrasi HCl dan suhu pemanasan yang digunakan dalam proses reaktivasi karbon aktif maka semakin besar luas permukaan karbon aktif, pori pori karbon aktif, morfologi, perubahan gugus fungsi dan zat pengotr menghilang. Hal ini disebabkan konsentrasi dan suhu pemanasan yang tinggi dapat mengikis zat pengotor yang menemp
English Abstract
Bamboo activated carbon that has been used as a waste purifier cannot be used directly as an adsorbate because of the many impurities that have attached to the bamboo activated carbon. on the bamboo activated carbon so that the pores of the bamboo activated carbon are covered by other impurities, its ability to absorb impurities is reduced. There is a way to restore the function of polluted bamboo activated carbon as an absorden so that polluted bamboo activated carbon can be reused. This method is called activated carbon reactivation, which is the process of recycling polluted activated carbon. Some bamboo activated carbon reactivation processes are carried out by two methods including acid washing and thermal reactivation. With this method, it can reduce waste pollution both impurities and activated carbon waste. Several bamboo activated carbon reactivation processes are carried out using two methods, including acid washing and thermal reactivation. With this method, you can reduce waste pollution, both pollutants and active carbon waste. The aim of this research is to highlight the importance of activated carbon in waste processing, especially medical waste which is a significant environmental problem. This study aims to investigate the effect of hydrochloric acid (HCl) concentration and heating temperature in the reactivation process of bamboo activated carbon, which is used in medical waste purification. The main focus is to improve the morphology, specific surface area and chemical function of bamboo activated carbon, so that it can be reused effectively. The bamboo activated carbon reactivation process is carried out by preparing bamboo activated carbon that has become an adsorbent for impurities in a wet or dry state. On wet bamboo activated carbon, first dried in an electric oven with a temperature of ±105 ℃ and time ±90 minutes. After the bamboo activated carbon is all dry, the first process carried out is acid washing treatment using HCl acid with two acid concentrations of 20% and 30% which is carried out by inserting bamboo activated carbon in each glass breaker containing HCl acid solution concentrations of 20% and 30% by stirring for 30 minutes at room temperature, after completion of stirring mixing 1% NaOH solution to remove HCl acid content in bamboo activated carbon. The final stage of acid washing treatment is done by separating the solution with activated carbon using filter paper and drying the activated carbon at ±105 ℃ for ±90. The second process gives thermal reactivation treatment by heating bamboo activated carbon at 750 ℃, 850 ℃, 950 ℃ for 60 minutes. After that, several tests were carried out including Brunuer Emmett Teller (BET) testing, Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS) and Fourier Transform Infrared (FTIR). The results of this study indicate that the greater the HCl concentration and heating temperature used in the activated carbon reactivation process, the greater the specific surface area of activated carbon, activated carbon pores, morphology, changes in functional groups and impurities disappear. This is because concentration and high heating temperatures can erode impurities attached to bamboo activated carbon so that activated carbon is able to absorb waste again
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0524071200 |
| Uncontrolled Keywords: | Karbon Aktif Bambu, Reaktivasi Karbon Aktif, Morfologi, Luas Permukaan Spesifik, Gugus Fungsi |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | S Sucipto |
| Date Deposited: | 19 Aug 2024 06:51 |
| Last Modified: | 19 Aug 2024 06:55 |
| URI: | http://repository.ub.ac.id/id/eprint/228379 |
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