Nutrient accumulation in trees and soil following irrigation with municipal effluent in Australia

Nitrogen forms, pH and total carbon in a soil incubated with treated sewage effluent

“…Each point represents the mean of four replicates. ** Significant at 1% of probability In the present study, the increases of soil pH after STSE application could be attributed to: (i) high effluent pH (Stewart et al, 1990); (ii) addition of exchangeable cations and alkalinity by effluent (Falkiner and Smith, 1997); (iii) increase of denitrification (Friedel et al, 2000), consuming one mol of H + for each mol denitrified NO 3 - (Bolan et al, 1991) residues to the soil followed by decarboxilation and desamination (organic anions and aminoacids) processes consuming protons (Yan et al, 1996); (vi) interaction of these factors associated with low CEC of the soil (Stevenson, 1986).…”

“…3c) and disagreed with Bouwer and Idelovitch (1987), who stated that TSE irrigation did not significantly affect soil pH due to the high soil buffer capacity. Also, several other studies reported slight increases (smaller than one unit) of soil pH in different agro-systems irrigated with TSE (Quin and Woods, 1978;Stewart et al, 1990;Schipper et al, 1996;Falkiner and Smith, 1997;Fonseca et al, 2005b). Figure 3 -Total nitrogen (TN) (a), total carbon (TC) (b), and pH (c) after application of secondary-treated sewage effluent (STSE) considering the total amount (1000, 1500 and 2000 mL STSE kg -1 soil) of the applied STSE over ten weeks.…”

EFFECTS OF MUNICIPAL SEWAGE ON THE GROWTH PERFORMANCE OF CASUARINA EQUISETIFOLIA (FORST. & FORST.) ON SANDY SOIL OF EAST COAST AT KALPAKKAM (TAMIL NADU, INDIA)

“…Omran et al (1998) in corroboration to the present findings, also reported increased growth density and shoot length in Navel Orange trees irrigated with sewage in Egypt. Similarly, increase in water and nutrient availability through effluent application influenced the growth of A. nilotica (Singh and Bhati, 2004;Singh and Singh, 2000), that of Eucalyptus (Singh and Bhati, 2003), Hardwickia binata (Paliwal et al, 1998), E. grandis (Stewart et al, 1990) and P. radiate (Sheriff et al, 1986). The sewage or drainage water used after primary treatment for irrigation increased the growth of woodlots with most commonly used species, C. glauca, E. camaldulensis and T. aphylla (El-Lakany, 1995).…”

“…), red pine (Pinus resinosa) and white spruce (Picea glauca). Tree plantations can remove nutrients such as nitrogen and phosphates from land-applied wastewater for their growth without any harmful effect on the environment (Stewart et al, 1990). Using municipal effluent to grow trees in suburban areas in developing countries may help solve the dual problems of wastewater disposal and lack of fuel wood supply (Paliwal et al, 1998;Singh and Bhati, 2004).…”

Atributos Químicos de Um Argissolo e Produção de Capim Elefante Decorrentes da Aplicação de Percolado de Aterro Sanitário

“…De acordo com Malavolta et al (1997) Houve um aumento significante do pH do solo, fato atribuído a alcalinidade do percolado aplicado em conjunto com a adição de cátions trocáveis e ânions presentes no percolado (STEWART et al, 1990), bem como do efeito acumulativo durante o tempo de aplicação.…”