The mechanical-biological waste treatment plants (MBTP), which include the municipal biogas plants, have an important role in sustainable urban development. Some are equipped with a sewage pre-treatment plant, is then directed to sewerage system and plant. Others, on other hand, only non-drainage tank. parameters of technological (TS) or processing technology could reduce contamination rates. I...

Interest in biochar stems from its potential agronomic benefits and carbon sequestration ability. Biochar application alters soil nitrogen (N) dynamics. This review establishes emerging trends and gaps in biochar-N research. Biochar adsorption of NO3, up to 0.6 mg g biochar, occurs at pyrolysis temperatures >600 °C with amounts adsorbed dependent on feedstock and NO3 concentration. Biochar NH4 ...

Two swine feeding trials were conducted (initial body weight = 47 +/- 2 and 41 +/- 3 kg for Trials 1 and 2, respectively) to evaluate reduced crude protein (CP) and yucca (Yucca schidigera Roezl ex Ortgies) extract-supplemented diets on NH3 emissions. In Trial 1, nine pigs were offered a corn-soybean meal diet (C, 174 g kg(-1) CP), a Lys-supplemented diet (L, 170 g kg(-1) CP), or a 145 g kg(-1)...

The aim of the study was to evaluate effect crude protein (CP) levels in concentrate and Sesbania grandiflora pod meal (SG) supplementation on feed intake, rumen fermentation, methane (CH4) mitigation Thai purebred beef cattle. Four cattle with 100 ± 5.0 kg body weight were used this study. A 2 × factorial experiment a 4 Latin square design conducted, which factor CP 14% 16% dry matter (DM) B s...

Improvements to the efficiency of dietary nitrogen use by lactating dairy cattle can be made by altering the concentration and form of protein in the diet. This study collected urine and feces from dairy cows from selected crude protein (CP) treatments of 2 lactation studies. In the first trial, collections were made from cattle fed a diet with high (19.4%) or low (13.6%) CP content (HCP and LC...

Manure can provide valuable nutrients, especially N, for grass forage, but high NH, volatilization losses from standard surface-broadcast application limits N availability and raises environmental concerns. Eight field trials were conducted to evaluate the emission of NH, from liquid dairy manure, either surface broadcast or applied in narrow surface bands with a trailing-foot implement. Manure...

Atmospheric absorption by brown carbon aerosol may play an important role in global radiative forcing. Brown carbon arises from both primary and secondary sources, but the mechanisms and reactions of the latter are highly uncertain. One proposed mechanism is the reaction of ammonia or amino acids with carbonyl products in secondary organic aerosol (SOA). We generated SOA in situ by reacting bio...

Recovery of phosphate (PO4-P) as struvite (MgNH4PO4·6H2O) from dairy lagoon wastewater (DW) limits contamination surface water arising application DW to crop fields. Magnesium (Mg) addition during PO4-P recovery is used promote precipitation and suppress formation undesired mineral products. A pilot-scale aerated fluidized-bed reactor was treat for recovery. The effect Mg concentration (0–20 mM...

We use the adjoint of a global 3-D chemical transport model (GEOS-Chem) to optimize ammonia (NH3) emissions in the U.S., European Union, and China by inversion of 2005–2008 network data for NH4 wet deposition fluxes. Optimized emissions are derived on a 2 ◦ × 2.5◦ grid for individual months and years. Error characterization in the optimization includes model errors in precipitation. Annual opti...