{"title":"堆肥渗滤液通过生物转化为肥料的养分回收:一种克服其局限性的新型人工湿地设计","authors":"Rémi Soret , Jean-Rémi Loup , Paul-Etienne Fontaine","doi":"10.1016/j.jwpe.2025.108312","DOIUrl":null,"url":null,"abstract":"<div><div>Nitrogen recovery through bioconversion of liquid wastes into nitrate-enriched fertilizers has recently raised interest as way to reduce water scarcity. Neither composting leachates nor Constructed Wetlands (CW) have been tested in this application. CW could be interesting for this bioconversion, but they lack acceptable organic loads. Their performance can however be enhanced through intensification techniques. A Verticalized SubSurface Flow constructed Wetland (VSSFW) with built-in and added intensification techniques was designed and compared to a traditional Vertical Flow CW (VFCW) for the bioconversion of synthetic composting leachates. The VSSFW showed significantly higher performances (Removal Efficiency RE (%) = 98.3 and 95.3 % for ammonium (NH<sub>4</sub>-N) and phosphate (P) respectively, 56 % conversion rate of NH<sub>4</sub>-N to nitrate (NO<sub>3</sub>-N)) than the VFCW (RE (%) = 59.2 and 46.3 % respectively, conversion rate of 14 %). Further VSSFW intensification (microbubbles aeration, addition of carbon) resulted in even higher performances (RE<sub>NH4-N</sub> (%) = 97.5 % in 24 h only, conversion rate 91 %, 16.5 times more performances than compared un-intensified CW).</div><div>The nitrate-concentrated solutions obtained after 24 h treatment showed 71.2 % concentrations similarity compared to the inorganic reference Hoagland solution used in hydroponic culture. A cost analysis demonstrated that the DML and CML of the VSSFW need to be further enhanced for later applications. This study, in conjunction to [1], pioneered and demonstrated the feasibility to use CW as a process to bioconvert high-strength liquid waste such as composting leachates into biofertilizer using a synthetic solution exhibiting similar hindering characteristics (high ammonium concentration, low carbon count). The VSSFW increase in performances (organic load, bioconversion rate) compared to traditional CW indicates its good potential as a bioconversion process and incites to pursue this work using real composting leachates.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"77 ","pages":"Article 108312"},"PeriodicalIF":6.3000,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Nutrient recovery of composting leachates through bioconversion into a fertilizer: A new constructed wetland design to overcome their limitations\",\"authors\":\"Rémi Soret , Jean-Rémi Loup , Paul-Etienne Fontaine\",\"doi\":\"10.1016/j.jwpe.2025.108312\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Nitrogen recovery through bioconversion of liquid wastes into nitrate-enriched fertilizers has recently raised interest as way to reduce water scarcity. Neither composting leachates nor Constructed Wetlands (CW) have been tested in this application. CW could be interesting for this bioconversion, but they lack acceptable organic loads. Their performance can however be enhanced through intensification techniques. A Verticalized SubSurface Flow constructed Wetland (VSSFW) with built-in and added intensification techniques was designed and compared to a traditional Vertical Flow CW (VFCW) for the bioconversion of synthetic composting leachates. The VSSFW showed significantly higher performances (Removal Efficiency RE (%) = 98.3 and 95.3 % for ammonium (NH<sub>4</sub>-N) and phosphate (P) respectively, 56 % conversion rate of NH<sub>4</sub>-N to nitrate (NO<sub>3</sub>-N)) than the VFCW (RE (%) = 59.2 and 46.3 % respectively, conversion rate of 14 %). Further VSSFW intensification (microbubbles aeration, addition of carbon) resulted in even higher performances (RE<sub>NH4-N</sub> (%) = 97.5 % in 24 h only, conversion rate 91 %, 16.5 times more performances than compared un-intensified CW).</div><div>The nitrate-concentrated solutions obtained after 24 h treatment showed 71.2 % concentrations similarity compared to the inorganic reference Hoagland solution used in hydroponic culture. A cost analysis demonstrated that the DML and CML of the VSSFW need to be further enhanced for later applications. This study, in conjunction to [1], pioneered and demonstrated the feasibility to use CW as a process to bioconvert high-strength liquid waste such as composting leachates into biofertilizer using a synthetic solution exhibiting similar hindering characteristics (high ammonium concentration, low carbon count). The VSSFW increase in performances (organic load, bioconversion rate) compared to traditional CW indicates its good potential as a bioconversion process and incites to pursue this work using real composting leachates.</div></div>\",\"PeriodicalId\":17528,\"journal\":{\"name\":\"Journal of water process engineering\",\"volume\":\"77 \",\"pages\":\"Article 108312\"},\"PeriodicalIF\":6.3000,\"publicationDate\":\"2025-07-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of water process engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2214714425013844\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of water process engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214714425013844","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Nutrient recovery of composting leachates through bioconversion into a fertilizer: A new constructed wetland design to overcome their limitations
Nitrogen recovery through bioconversion of liquid wastes into nitrate-enriched fertilizers has recently raised interest as way to reduce water scarcity. Neither composting leachates nor Constructed Wetlands (CW) have been tested in this application. CW could be interesting for this bioconversion, but they lack acceptable organic loads. Their performance can however be enhanced through intensification techniques. A Verticalized SubSurface Flow constructed Wetland (VSSFW) with built-in and added intensification techniques was designed and compared to a traditional Vertical Flow CW (VFCW) for the bioconversion of synthetic composting leachates. The VSSFW showed significantly higher performances (Removal Efficiency RE (%) = 98.3 and 95.3 % for ammonium (NH4-N) and phosphate (P) respectively, 56 % conversion rate of NH4-N to nitrate (NO3-N)) than the VFCW (RE (%) = 59.2 and 46.3 % respectively, conversion rate of 14 %). Further VSSFW intensification (microbubbles aeration, addition of carbon) resulted in even higher performances (RENH4-N (%) = 97.5 % in 24 h only, conversion rate 91 %, 16.5 times more performances than compared un-intensified CW).
The nitrate-concentrated solutions obtained after 24 h treatment showed 71.2 % concentrations similarity compared to the inorganic reference Hoagland solution used in hydroponic culture. A cost analysis demonstrated that the DML and CML of the VSSFW need to be further enhanced for later applications. This study, in conjunction to [1], pioneered and demonstrated the feasibility to use CW as a process to bioconvert high-strength liquid waste such as composting leachates into biofertilizer using a synthetic solution exhibiting similar hindering characteristics (high ammonium concentration, low carbon count). The VSSFW increase in performances (organic load, bioconversion rate) compared to traditional CW indicates its good potential as a bioconversion process and incites to pursue this work using real composting leachates.
期刊介绍:
The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies