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Coapplication of water treatment residual and compost for increased phosphorus availability in arable sandy soils (2023)
Journal Article
Gwandu, T., Lukashe, N., Rurinda, J., Stone, W., Chivasa, S., Clarke, C., …Johnson, K. (2023). Coapplication of water treatment residual and compost for increased phosphorus availability in arable sandy soils. Journal of Sustainable Agriculture and Environment, 2(1), 68-81. https://doi.org/10.1002/sae2.12039

Introduction Soil degradation coupled with poor access to organic nutrient resources remains a major constraint in increased crop productivity in sub-Saharan Africa, thus hindering the continent's efforts in achieving the United Nations' Sustainable... Read More about Coapplication of water treatment residual and compost for increased phosphorus availability in arable sandy soils.

Boosting soil literacy in schools can help improve understanding of soil/human health linkages in Generation Z (2023)
Journal Article
Johnson, K. L., Stone, W., Dominelli, L., Chivasa, S., Clarke, C. E., Gwandu, T., & Appleby, J. (2023). Boosting soil literacy in schools can help improve understanding of soil/human health linkages in Generation Z. Frontiers in Environmental Science, 10, https://doi.org/10.3389/fenvs.2022.1028839

Soil health underpins ecosystem services like food security and therefore underpins human health. Poor soil health is a global problem which is hindering attempts to deliver the UN’s Sustainable Development Goals. We focus on goals 3 (human health),... Read More about Boosting soil literacy in schools can help improve understanding of soil/human health linkages in Generation Z.

A nation that rebuilds its soils rebuilds itself- an engineer's perspective (2022)
Journal Article
Johnson, K. L., Gray, N. D., Stone, W., Kelly, B. F., Fitzsimons, M. F., Clarke, C., …Gwandu, T. (2022). A nation that rebuilds its soils rebuilds itself- an engineer's perspective. Soil security, 7, Article 100060. https://doi.org/10.1016/j.soisec.2022.100060

Nations can build and rebuild degraded soils to help address climate change and potentially improve the nutritional content of food if we change policies that allow the addition of safe mineral and organic wastes to soil. We present a framework that... Read More about A nation that rebuilds its soils rebuilds itself- an engineer's perspective.

Reusing Fe water treatment residual as a soil amendment to improve physical function and flood resilience (2022)
Journal Article
Kerr, H. C., Johnson, K. L., & Toll, D. G. (2022). Reusing Fe water treatment residual as a soil amendment to improve physical function and flood resilience. SOIL, 8(1), 283-295. https://doi.org/10.5194/soil-8-283-2022

Soil degradation is a global challenge that is intrinsically linked to climate change and food security. Soil degradation has many causes, but all degraded soils suffer from poor soil structure. The increasing global production of water treatment res... Read More about Reusing Fe water treatment residual as a soil amendment to improve physical function and flood resilience.

Waste to resource: use of water treatment residual for increased maize productivity and micronutrient content (2021)
Journal Article
Gwandu, T., Blake, L., Nezomba, H., Rurinda, J., Chivasa, S., Mtambanengwe, F., & Johnson, K. (2022). Waste to resource: use of water treatment residual for increased maize productivity and micronutrient content. Environmental Geochemistry and Health, 44(10), 3359-3376. https://doi.org/10.1007/s10653-021-01100-z

Soil degradation, which is linked to poor nutrient management, remains a major constraint to sustained crop production in smallholder urban agriculture (UA) in sub-Saharan Africa (SSA). While organic nutrient resources are often used in UA to complem... Read More about Waste to resource: use of water treatment residual for increased maize productivity and micronutrient content.

The microbiology of rebuilding soils with water treatment residual co‐amendments: Risks and benefits (2021)
Journal Article
Stone, W., Lukashe, N. S., Blake, L. I., Gwandu, T., Hardie, A. G., Quinton, J., …Clarke, C. E. (2021). The microbiology of rebuilding soils with water treatment residual co‐amendments: Risks and benefits. Journal of Environmental Quality, 50(6), 1381-1394. https://doi.org/10.1002/jeq2.20286

Water treatment residuals (WTR) are sludges from the potable water treatment process, currently largely destined for landfill. This waste can be diverted to rebuild degraded soils, aligning with the UN's Sustainable Development Goals 12 (Consumption... Read More about The microbiology of rebuilding soils with water treatment residual co‐amendments: Risks and benefits.

Common Language of Sustainability for Built Environment Professionals—The Quintuple Helix Model for Higher Education (2020)
Journal Article
Crilly, M., Vemury, C. M., Humphrey, R., Rodriguez, S., Crosbie, T., Johnson, K., …Heidrich, O. (2020). Common Language of Sustainability for Built Environment Professionals—The Quintuple Helix Model for Higher Education. Energies, 13(22), Article 5860. https://doi.org/10.3390/en13225860

One of the repeating themes around the provision of the knowledge and skills needed for delivering sustainable communities is the idea of a “common language” for all built environment professionals. This suggestion has been repeated regularly with ea... Read More about Common Language of Sustainability for Built Environment Professionals—The Quintuple Helix Model for Higher Education.

The ABC of Soil Literacy - Evidence from Ghana, South Africa and Zimbabwe (2020)
Report
Johnson, K., Philip, D., & Engels, C. (2020). The ABC of Soil Literacy - Evidence from Ghana, South Africa and Zimbabwe. [No known commissioning body]

Climate change and soil health are intimately linked, as reflected in the United Nation’s Sustainable Development Goal (SDG) 15. Land degradation is responsible for a significant proportion of all global greenhouse gas emissions (WGII, IPCC, 2007), t... Read More about The ABC of Soil Literacy - Evidence from Ghana, South Africa and Zimbabwe.

Characteristics and Mechanisms of Pb(II) Sorption onto Fe-rich waste Water Treatment Residue (WTR): A potential sustainable Pb immobilisation technology for soils (2020)
Journal Article
Findlay, N. C., Peacock, C. L., Hudson-Edwards, K. A., & Johnson, K. L. (2021). Characteristics and Mechanisms of Pb(II) Sorption onto Fe-rich waste Water Treatment Residue (WTR): A potential sustainable Pb immobilisation technology for soils. Journal of Hazardous Materials, 402, Article 123433. https://doi.org/10.1016/j.jhazmat.2020.123433

Pb contamination of soils is a global problem. This paper discusses the ability of an Fe-rich waste, water treatment residual (WTR), to adsorb Pb(II). This was investigated using batch sorption experiments, X-ray diffraction, electron microprobe micr... Read More about Characteristics and Mechanisms of Pb(II) Sorption onto Fe-rich waste Water Treatment Residue (WTR): A potential sustainable Pb immobilisation technology for soils.

Better Together: Water Treatment Residual and Poor-Quality Compost Improves Sandy Soil Fertility (2019)
Journal Article
Clarke, C. E., Stone, W., Hardie, A. G., Quinton, J. N., Blake, L. I., & Johnson, K. L. (2019). Better Together: Water Treatment Residual and Poor-Quality Compost Improves Sandy Soil Fertility. Journal of Environmental Quality, 48(6), 1781-1788. https://doi.org/10.2134/jeq2019.03.0147

Water treatment residual (WTR) is an underused clean water industry byproduct, generally disposed to landfill. This study assesses the benefits and risks of ferric-WTR as a soil amendment or co-amendment for plant growth in a nutrient-poor sandy soil... Read More about Better Together: Water Treatment Residual and Poor-Quality Compost Improves Sandy Soil Fertility.

Dissolved Mn(III) in Water Treatment Works: Prevalence and Significance (2018)
Journal Article
Johnson, K., McCann, C., Wilkinson, J., Jones, M., Tebo, B., West, M., …Hudson-Edwards, K. (2018). Dissolved Mn(III) in Water Treatment Works: Prevalence and Significance. Water Research, 140, 181-190. https://doi.org/10.1016/j.watres.2018.04.038

Dissolved Mn(III) has been identified at all stages throughout a Water Treatment Works (WTW) receiving inflow from a peaty upland catchment in NE England. Ninety percent of the influent total manganese into the WTW is particulate Mn, in the form of M... Read More about Dissolved Mn(III) in Water Treatment Works: Prevalence and Significance.

In situ arsenic oxidation and sorption by a Fe-Mn binary oxide waste in soil (2017)
Journal Article
McCann, C. M., Peacock, C. L., Hudson-Edwards, K. A., Shrimpton, T., Gray, N. D., & Johnson, K. L. (2018). In situ arsenic oxidation and sorption by a Fe-Mn binary oxide waste in soil. Journal of Hazardous Materials, 342, 724-731. https://doi.org/10.1016/j.jhazmat.2017.08.066

The ability of a Fe-Mn binary oxide waste to adsorb arsenic (As) in a historically contaminated soil was investigated. Initial laboratory sorption experiments indicated that arsenite [As(III)] was oxidized to arsenate [As(V)] by the Mn oxide componen... Read More about In situ arsenic oxidation and sorption by a Fe-Mn binary oxide waste in soil.

The role of water treatment abstraction in the flux and greenhouse gas emissions from organic carbon and nitrogen within UK rivers (2016)
Journal Article
Finlay, N., Johnson, K., & Worrall, F. (2016). The role of water treatment abstraction in the flux and greenhouse gas emissions from organic carbon and nitrogen within UK rivers. Water Resources Research, 52(10), 8190-8201. https://doi.org/10.1002/2016wr019362

The fate of organic matter through watersheds has been shown to be an important component of the global carbon cycle and processes in rivers can rapidly transfer carbon from the terrestrial biosphere to the atmosphere. However, the role of water abst... Read More about The role of water treatment abstraction in the flux and greenhouse gas emissions from organic carbon and nitrogen within UK rivers.

Flood Holding Capacity: A Novel Concept to Evaluate the Resilience of Amended Soils (2016)
Conference Proceeding
Kerr, H., Johnson, K., Toll, D. G., & Mansfield, F. (2016). Flood Holding Capacity: A Novel Concept to Evaluate the Resilience of Amended Soils. . https://doi.org/10.1061/9780784480120.041

The term water holding capacity (WHC) has long been used to help researchers determine how soils respond to typical wetting under rainfall. However the term WHC is insufficient as a measurement to describe how soil responds to flooding events. This p... Read More about Flood Holding Capacity: A Novel Concept to Evaluate the Resilience of Amended Soils.

Towards a Mechanistic Understanding of Carbon Stabilization in Manganese Oxides (2015)
Journal Article
Johnson, K., Purvis, G., Lopez-Capel, E., Peacock, C., Gray, N., Wagner, T., …Greenwell, C. (2015). Towards a Mechanistic Understanding of Carbon Stabilization in Manganese Oxides. Nature Communications, 6, Article 7628. https://doi.org/10.1038/ncomms8628

Minerals stabilize organic carbon (OC) in sediments, thereby directly affecting global climate at multiple scales, but how they do it is far from understood. Here we show that manganese oxide (Mn oxide) in a water treatment works filter bed traps dis... Read More about Towards a Mechanistic Understanding of Carbon Stabilization in Manganese Oxides.

This divided land: An examination of regional inequalities in exposure to brownfield land and the association with morbidity and mortality in England (2015)
Journal Article
Bambra, C., Cairns, J., Kasim, A., Smith, J., Robertson, S., Copeland, A., & Johnson, K. (2015). This divided land: An examination of regional inequalities in exposure to brownfield land and the association with morbidity and mortality in England. Health & Place, 34, 257-269. https://doi.org/10.1016/j.healthplace.2015.05.010

This paper is the first empirical examination of the association between brownfield land and spatial inequalities in health. Linear mixed modelling of ward-level data suggests that there is higher exposure and susceptibility to brownfield land in the... Read More about This divided land: An examination of regional inequalities in exposure to brownfield land and the association with morbidity and mortality in England.

Remediation of a historically Pb contaminated soil using a model natural Mn oxide waste (2015)
Journal Article
McCann, C., Gray, N., Tourney, J., Davenport, R., Wade, M., Finlay, N., …Johnson, K. (2015). Remediation of a historically Pb contaminated soil using a model natural Mn oxide waste. Chemosphere, 138, 211-217. https://doi.org/10.1016/j.chemosphere.2015.05.054

A natural Mn oxide (NMO) waste was assessed as an in situ remediation amendment for Pb contaminated sites. The viability of this was investigated using a 10 month lysimeter trial, wherein a historically Pb contaminated soil was amended with a 10% by... Read More about Remediation of a historically Pb contaminated soil using a model natural Mn oxide waste.

Interaction of Natural Organic Matter with Layered Minerals: Recent Developments in Computational Methods at the Nanoscale (2014)
Journal Article
Greathouse, J., Johnson, K., & Greenwell, H. (2014). Interaction of Natural Organic Matter with Layered Minerals: Recent Developments in Computational Methods at the Nanoscale. Minerals, 4(2), 519-540. https://doi.org/10.3390/min4020519

The role of mineral surfaces in the adsorption, transport, formation, and degradation of natural organic matter (NOM) in the biosphere remains an active research area owing to the difficulties in identifying proper working models of both NOM and mine... Read More about Interaction of Natural Organic Matter with Layered Minerals: Recent Developments in Computational Methods at the Nanoscale.

Healthy land? An examination of the area-level association between brownfield land and morbidity and mortality in England (2014)
Journal Article
Bambra, C., Robertson, S., Kasim, A., Smith, J., Cairns-Nagi, J., Copeland, A., …Johnson, K. (2014). Healthy land? An examination of the area-level association between brownfield land and morbidity and mortality in England. Environment and Planning A, 46(2), 433-454. https://doi.org/10.1068/a46105

It is increasingly understood that the physical environment remains an important determinant of area-level health and spatial and socioeconomic health inequalities. Existing research has largely focused on the health effects of differential access to... Read More about Healthy land? An examination of the area-level association between brownfield land and morbidity and mortality in England.