Papers by Putri Annisa Febrian
Nowadays, coffee is one of needs among metropolitan people. This lifestyle impact to increasing w... more Nowadays, coffee is one of needs among metropolitan people. This lifestyle impact to increasing waste along coffee production, one of them is spent coffee grounds. Spent coffee grounds has toxic properties to the environment such as caffeine, tannins, and polyphenols. While other chemicals contain on spent coffee grounds are 2.28% nitrogen, 0.06% phosphorus, 0.6% potassium, which means has a good impact to the soil. In existing condition, spent coffee grounds is commonly used to, biodiesel and bioethanol or by direct used to the soil. The processing of spent coffee grounds to be liquid organic fertilizer by using bio-activator are considered to substitute the direct used, it will improve the quality of soil. Objectives: The objective of this research is to study of liquid fertilizer from spent coffee grounds, whether comply or not to the standard regulation Ministerial Decree of Agriculture of the Republic of Indonesia Number 261/2019. Method and results: This research use a spent coffee grounds from arabica and robusta coffee and applied 2(two) different dilution by repeated 2x2 on one time by using EM4 as bio-activator. The pH and temperature for 4 experiments measured daily and has an average on 4.8 and 31-degree celcius for 10 days. Nitrogen, Phosphorus, and phosphor measured in the end of experiment has average results on 0.18, 0.17, 0.04, sequentially. Conclusion: The result for chemical parameter; Nitrogen, Phosphorus, and phosphor has not comply to the standard of liquid organic fertilizer by Indonesia Government.
Received 22-05-2021 Revised 24-05-2021 Accepted 18-07-2021 Available online Abstract. Nowadays, c... more Received 22-05-2021 Revised 24-05-2021 Accepted 18-07-2021 Available online Abstract. Nowadays, coffee is one of needs among metropolitan people. This lifestyle impact to increasing waste along coffee production, one of them is spent coffee grounds. Spent coffee grounds has toxic properties to the environment such as caffeine, tannins, and polyphenols. While other chemicals contain on spent coffee grounds are 2.28% nitrogen, 0.06% phosphorus, 0.6% potassium, which means has a good impact to the soil. In existing condition, spent coffee grounds is commonly used to, biodiesel and bioethanol or by direct used to the soil. The processing of spent coffee grounds to be liquid organic fertilizer by using bio-activator are considered to substitute the direct used, it will improve the quality of soil. Objectives: The objective of this research is to study of liquid fertilizer from spent coffee grounds, whether comply or not to the standard regulation Ministerial Decree of Agriculture of the ...
Growing the economy is a concern for President Joko Widodo's (Jokowi) government, which is wh... more Growing the economy is a concern for President Joko Widodo's (Jokowi) government, which is why attention is so important to the construction companies. Some of the largest construction firms reported major rises throughout the value of federal contracts. Attempts to improve the infrastructure services of the organization can be made through a control system of factors affecting the performance of the company which ultimately determines the business success in achieving its goals. PT. Waskita Karya Tbk and PT. Wijaya Karya Tbk implement green construction, and green building for their environmental management quality standard, meanwhile PT PP (Persero) implement 3R (Reduce, Reuse, Recycle) theory. Regarding raw materials / products which come mainly from nature. Those three businesses have received no reports over the course of the year about the environmental business. The environmental management system then proves that improve the management standard will increase productivity...
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Papers by Putri Annisa Febrian