Cambridge Open Engage home
What is Cambridge Open Engage?
How to Submit
Browse
About
News [opens in a new tab]

Mechanochemical synthesis of eco-friendly fertilizer from eggshell (calcite) and KH2PO4

20 July 2021, Version 1
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

The present article, based on reverse logistic, provides an environmentally beneficial and cost-effective method of producing calcium phosphate bioceramics (potassium calcium phosphates) aimed for soil conditioning, by a free-solvent mechanochemical process between eggshell waste and KH2PO4. The K3CaH(PO4)2 and possibly CaKPO4 phases formed provide better nutrient management of P, K and Ca, when applied in soil system the material first release K and form hydroxyapatite and important P and Ca bioavailable source at pH ~ 5, which comprises a large part of many countries soils.

Supplementary materials

Title
Description
Actions
Title
List of supplementary Tables, Figures and schemes
Description
This file contains Materials and methods supplementary, Tables, and Figures.
Actions

Comments

Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy [opens in a new tab] - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here [opens in a new tab] .
This site is protected by reCAPTCHA and the Google Privacy Policy [opens in a new tab] and Terms of Service [opens in a new tab] apply.

Version History

Jul 20, 2021 Version 1

Metrics

746
677
0
Views
Downloads
Citations

License

CC logo
CC
BY logo
BY
The content is available under CC BY 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2021-1qw19
D O I: 10.26434/chemrxiv-2021-1qw19 [opens in a new tab]

Funding

FAPESP
2016/10636-8 and 2018/10104-1
CNPq
301743/2018-5

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) declare that they have sought and gained approval from the relevant ethics committee/IRB for this research and its publication.

Share