| Title | Combining chemical coagulation with activated coke adsorption to remove organic matters and retain nitrogen compounds in mature landfill leachate |
|---|---|
| ID_Doc | 29977 |
| Authors | Xiong, JY; Zhang, C; Yang, XY; Zhou, T; Yang, SJ |
| Title | Combining chemical coagulation with activated coke adsorption to remove organic matters and retain nitrogen compounds in mature landfill leachate |
| Year | 2021 |
| Published | Environmental Technology, 42.0, 22 |
| Abstract | Mature landfill leachate usually contains high levels of both recalcitrant organic matters and nitrogen compounds, which are hard to be removed simultaneously. In view of the difficulty, this study explored an innovative alternative that treated organic matters and nitrogen compounds separately by combining ferric trichloride (FTC) and polyacrylamide (PAM) coagulation with activated coke adsorption. Our study results have shown that the combination of chemical coagulation (750 mg/L of ferric trichloride and 2.0 mg/L of anionic polyacrylamide at pH = 5) with activated coke adsorption (5 g per 100 mL) was able to remove total organic carbon (TOC), chemical oxygen demand (COD), and colority by 91%, 57%, 100%, respectively. The removal efficiency (R.E.) of humic- and protein-like matters both exceeded 95%. Meanwhile, nitrogen compounds, such as nitrite and ammonia nitrogen, were mostly retained in the effluent. They could either be recovered as value-added products through technologies such as negative pressure steam-stripping or removed through methods such as air stripping and ion exchange. Overall, the proposed coagulation-adsorption process may provide a feasible alternative for tackling the worldwide concern over the secondary pollution caused by mature landfill leachate and its effective disposal. |
Similar Articles
| ID | Score | Article |
|---|---|---|
25351
|
Kurniawan, TA; Singh, D; Xue, WC; Avtar, R; Othman, MHD; Hwang, GH; Setiadi, T; Albadarin, AB; Shirazian, S Resource recovery toward sustainability through nutrient removal from landfill leachate(2021) | |
| 13385
|
Bentley, MJ; Solomon, ME; Marten, BM; Shimabuku, KK; Cook, SM Evaluating landfill leachate treatment by organic municipal solid waste-derived biochar(2021)Environmental Science-Water Research & Technology, 7, 11 | |
| 18646
|
Poblete, R; Cortes, E; Bakit, J; Luna-Galiano, Y Use of fish scales as an adsorbent of organic matter present in the treatment of landfill leachate(2020)Journal Of Chemical Technology And Biotechnology, 95.0, 5 | |
| 20240
|
Siggins, A; Abram, F; Healy, MG Pyrolysed waste materials show potential for remediation of trichloroethylene-contaminated water(2020) | |
| 6018
|
Kurniawan, TA; Othman, MHD; Liang, X; Goh, HH; Chew, KW From liquid waste to mineral fertilizer: Recovery, recycle and reuse of high-value macro-nutrients from landfill leachate to contribute to circular economy, food security, and carbon neutrality(2023) | |
| 19534
|
Ghosh, A; Kumar, S; Das, J Impact of leachate and landfill gas on the ecosystem and health: Research trends and the forward towards(2023) | |
| 28814
|
Pap, S; Boyd, KG; Taggart, MA; Sekulic, MT Circular economy based landfill leachate treatment with sulphur-doped microporous biochar(2021) | |
| 12501
|
Ribera-Pi, J; Badia-Fabregat, M; Espí, J; Clarens, F; Jubany, I; Martínez-Lladó, X Decreasing environmental impact of landfill leachate treatment by MBR, RO and EDR hybrid treatment(2021)Environmental Technology, 42.0, 22 | |
| 22103
|
Igwegbe, CA; López-Maldonado, EA; Landázuri, AC; Ovuoraye, PE; Ogbu, AI; Vela-Garcia, N; Bialowiec, A Sustainable municipal landfill leachate management: Current practices, challenges, and future directions(2024) | |
| 28070
|
Mohamed, BA; Nicomel, NR; Hamid, H; Li, LY Using circular economy principles in the optimisation of sludge-based activated carbon production for the removal of perfluoroalkyl substances(2023) |