Removal of phosphorus from wastewater using granular water treatment sludge | |
| Author | Chalongrat Thawonbundit |
| Call Number | AIT Thesis no.EV-21-23 |
| Subject(s) | Wastewater--Treatment Water--Thailand--Phosphorus content Phosphorus Removal Sewage |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Environmental Engineering and Management |
| Publisher | Asian Institute of Technology |
| Abstract | Currently, community wastewater and groundwater in Thailand are contaminated with phosphorus. This may affect the health of aquatic animals and the scenery of the water resources. Phosphorus contamination ranges from 4 to 15 mg/L (standard is 2 mg/L). The normal phosphorus removal process in wastewater treatment is flocculation. It is a process that requires a lot of chemicals and is expensive. The use of sorbents made from waste materials such as wastewater treatment sludge. It is an alternative to phosphorus removal and reduces the cost of using chemicals. Water treatment sludge is insoluble in water due to the presence of silica. therefore, suitable for use as an adsorbent Therefore, the sludge from the water treatment sludge was incinerated to remove the organic matter in the sludge at 650 °C for further adsorption experiments. Analysis of properties of water treatment sludge by method Thermal Weight Change Analysis, X-ray fluorescence, and Brunauer-Emmett Teller as well as to study the kinetics and isotherms of phosphorus absorption using synthetic wastewater. The results showed that the adsorption capacity of water treatment sludge was 70.87 mg/l and for activated carbon was 24.45 mg/l at a concentration of 200 mg/l of phosphorus. The adsorption capacity of water treatment sludge was 3.36 mg. /g and activated carbon is 1.14mg/g. The surface area of water treatment sludge is 85.02m2 /g and activated carbon is 612.93m2 /g. Water treatment sludge follow Temkin adsorption isotherm and activated carbon follow Langmuir adsorption isotherm. This water treatment sludge, which has the potential to lead to the removal of phosphorus in raw water. |
| Year | 2021 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Xue, Wenchao |
| Examination Committee(s) | Nguyen Thi Kim Oanh;Thammarat Koottatep |
| Scholarship Donor(s) | Royal Thai Government Fellowship |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2021 |